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hsmusic-wiki - HSMusic - static wiki software cataloguing collaborative creation
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-rw-r--r--src/data/checks.js42
-rw-r--r--src/data/composite/control-flow/flipFilter.js36
-rw-r--r--src/data/composite/control-flow/index.js1
-rw-r--r--src/data/composite/control-flow/withAvailabilityFilter.js1
-rw-r--r--src/data/composite/data/withFilteredList.js16
-rw-r--r--src/data/composite/data/withNearbyItemFromList.js52
-rw-r--r--src/data/composite/data/withPropertyFromObject.js38
-rw-r--r--src/data/composite/things/artwork/index.js4
-rw-r--r--src/data/composite/things/artwork/withAttachedArtwork.js43
-rw-r--r--src/data/composite/things/artwork/withContainingArtworkList.js46
-rw-r--r--src/data/composite/things/artwork/withContribsFromAttachedArtwork.js28
-rw-r--r--src/data/composite/things/artwork/withPropertyFromAttachedArtwork.js65
-rw-r--r--src/data/composite/things/commentary-entry/index.js1
-rw-r--r--src/data/composite/things/commentary-entry/withWebArchiveDate.js41
-rw-r--r--src/data/composite/wiki-data/index.js4
-rw-r--r--src/data/composite/wiki-data/processContentEntryDates.js181
-rw-r--r--src/data/composite/wiki-data/withConstitutedArtwork.js4
-rw-r--r--src/data/composite/wiki-data/withParsedCommentaryEntries.js129
-rw-r--r--src/data/composite/wiki-data/withParsedContentEntries.js111
-rw-r--r--src/data/composite/wiki-data/withParsedLyricsEntries.js157
-rw-r--r--src/data/composite/wiki-properties/commentary.js34
-rw-r--r--src/data/composite/wiki-properties/commentatorArtists.js11
-rw-r--r--src/data/composite/wiki-properties/constitutibleArtwork.js2
-rw-r--r--src/data/composite/wiki-properties/constitutibleArtworkList.js2
-rw-r--r--src/data/composite/wiki-properties/index.js2
-rw-r--r--src/data/composite/wiki-properties/lyrics.js36
-rw-r--r--src/data/things/album.js48
-rw-r--r--src/data/things/artist.js1
-rw-r--r--src/data/things/artwork.js87
-rw-r--r--src/data/things/content.js122
-rw-r--r--src/data/things/flash.js41
-rw-r--r--src/data/things/index.js2
-rw-r--r--src/data/things/track.js44
-rw-r--r--src/data/yaml.js87
34 files changed, 759 insertions, 760 deletions
diff --git a/src/data/checks.js b/src/data/checks.js
index 25863d2d..52024144 100644
--- a/src/data/checks.js
+++ b/src/data/checks.js
@@ -19,12 +19,6 @@ import {
   withAggregate,
 } from '#aggregate';
 
-import {
-  combineWikiDataArrays,
-  commentaryRegexCaseSensitive,
-  oldStyleLyricsDetectionRegex,
-} from '#wiki-data';
-
 function inspect(value, opts = {}) {
   return nodeInspect(value, {colors: ENABLE_COLOR, ...opts});
 }
@@ -190,7 +184,8 @@ export function filterReferenceErrors(wikiData, {
       groups: 'group',
       artTags: '_artTag',
       referencedArtworks: '_artwork',
-      commentary: '_commentary',
+      commentary: '_content',
+      creditSources: '_content',
     }],
 
     ['artTagData', {
@@ -198,7 +193,8 @@ export function filterReferenceErrors(wikiData, {
     }],
 
     ['flashData', {
-      commentary: '_commentary',
+      commentary: '_content',
+      creditSources: '_content',
     }],
 
     ['groupCategoryData', {
@@ -238,7 +234,9 @@ export function filterReferenceErrors(wikiData, {
       artTags: '_artTag',
       referencedArtworks: '_artwork',
       mainReleaseTrack: '_trackMainReleasesOnly',
-      commentary: '_commentary',
+      commentary: '_content',
+      creditSources: '_content',
+      lyrics: '_content',
     }],
 
     ['wikiInfo', {
@@ -273,12 +271,12 @@ export function filterReferenceErrors(wikiData, {
             let writeProperty = true;
 
             switch (findFnKey) {
-              case '_commentary':
+              case '_content':
                 if (value) {
                   value =
-                    Array.from(value.matchAll(commentaryRegexCaseSensitive))
-                      .map(({groups}) => groups.artistReferences)
-                      .map(text => text.split(',').map(text => text.trim()));
+                    value.map(entry =>
+                      CacheableObject.getUpdateValue(entry, 'artists') ??
+                      []);
                 }
 
                 writeProperty = false;
@@ -334,7 +332,7 @@ export function filterReferenceErrors(wikiData, {
                 findFn = boundFind.artTag;
                 break;
 
-              case '_commentary':
+              case '_content':
                 findFn = findArtistOrAlias;
                 break;
 
@@ -466,7 +464,7 @@ export function filterReferenceErrors(wikiData, {
                 }
               }
 
-              if (findFnKey === '_commentary') {
+              if (findFnKey === '_content') {
                 filter(
                   value, {message: errorMessage},
                   decorateErrorWithIndex(refs =>
@@ -573,7 +571,7 @@ export function reportContentTextErrors(wikiData, {
     annotation: 'commentary annotation',
   };
 
-  const newStyleLyricsShape = {
+  const lyricsShape = {
     body: 'lyrics body',
     artistDisplayText: 'lyrics artist display text',
     annotation: 'lyrics annotation',
@@ -625,7 +623,7 @@ export function reportContentTextErrors(wikiData, {
       additionalFiles: additionalFileShape,
       commentary: commentaryShape,
       creditSources: commentaryShape,
-      lyrics: '_lyrics',
+      lyrics: lyricsShape,
       midiProjectFiles: additionalFileShape,
       sheetMusicFiles: additionalFileShape,
     }],
@@ -749,7 +747,6 @@ export function reportContentTextErrors(wikiData, {
           nest({message: `Content text errors in ${inspect(thing)}`}, ({nest, push}) => {
 
             for (let [property, shape] of Object.entries(propSpec)) {
-              const rawValue = CacheableObject.getUpdateValue(thing, property);
               let value = thing[property];
 
               if (value === undefined) {
@@ -761,15 +758,6 @@ export function reportContentTextErrors(wikiData, {
                 continue;
               }
 
-              if (shape === '_lyrics') {
-                if (oldStyleLyricsDetectionRegex.test(rawValue)) {
-                  value = rawValue;
-                  shape = '_content';
-                } else {
-                  shape = newStyleLyricsShape;
-                }
-              }
-
               const fieldPropertyMessage =
                 getFieldPropertyMessage(
                   thing.constructor[Thing.yamlDocumentSpec],
diff --git a/src/data/composite/control-flow/flipFilter.js b/src/data/composite/control-flow/flipFilter.js
new file mode 100644
index 00000000..995bacad
--- /dev/null
+++ b/src/data/composite/control-flow/flipFilter.js
@@ -0,0 +1,36 @@
+// Flips a filter, so that each true item becomes false, and vice versa.
+// Overwrites the provided dependency.
+//
+// See also:
+//  - withAvailabilityFilter
+
+import {input, templateCompositeFrom} from '#composite';
+
+export default templateCompositeFrom({
+  annotation: `flipFilter`,
+
+  inputs: {
+    filter: input({type: 'array'}),
+  },
+
+  outputs: ({
+    [input.staticDependency('filter')]: filterDependency,
+  }) => [filterDependency ?? '#flippedFilter'],
+
+  steps: () => [
+    {
+      dependencies: [
+        input('filter'),
+        input.staticDependency('filter'),
+      ],
+
+      compute: (continuation, {
+        [input('filter')]: filter,
+        [input.staticDependency('filter')]: filterDependency,
+      }) => continuation({
+        [filterDependency ?? '#flippedFilter']:
+          filter.map(item => !item),
+      }),
+    },
+  ],
+});
diff --git a/src/data/composite/control-flow/index.js b/src/data/composite/control-flow/index.js
index 7e137a14..778dc66b 100644
--- a/src/data/composite/control-flow/index.js
+++ b/src/data/composite/control-flow/index.js
@@ -10,6 +10,7 @@ export {default as exposeDependency} from './exposeDependency.js';
 export {default as exposeDependencyOrContinue} from './exposeDependencyOrContinue.js';
 export {default as exposeUpdateValueOrContinue} from './exposeUpdateValueOrContinue.js';
 export {default as exposeWhetherDependencyAvailable} from './exposeWhetherDependencyAvailable.js';
+export {default as flipFilter} from './flipFilter.js';
 export {default as raiseOutputWithoutDependency} from './raiseOutputWithoutDependency.js';
 export {default as raiseOutputWithoutUpdateValue} from './raiseOutputWithoutUpdateValue.js';
 export {default as withAvailabilityFilter} from './withAvailabilityFilter.js';
diff --git a/src/data/composite/control-flow/withAvailabilityFilter.js b/src/data/composite/control-flow/withAvailabilityFilter.js
index cfea998e..fd93af71 100644
--- a/src/data/composite/control-flow/withAvailabilityFilter.js
+++ b/src/data/composite/control-flow/withAvailabilityFilter.js
@@ -4,6 +4,7 @@
 // Accepts the same mode options as withResultOfAvailabilityCheck.
 //
 // See also:
+//  - flipFilter
 //  - withFilteredList
 //  - withResultOfAvailabilityCheck
 //
diff --git a/src/data/composite/data/withFilteredList.js b/src/data/composite/data/withFilteredList.js
index 44c1661d..15ee3373 100644
--- a/src/data/composite/data/withFilteredList.js
+++ b/src/data/composite/data/withFilteredList.js
@@ -2,9 +2,6 @@
 // corresponding items in a list. Items which correspond to a truthy value
 // are kept, and the rest are excluded from the output list.
 //
-// If the flip option is set, only items corresponding with a *falsy* value in
-// the filter are kept.
-//
 // TODO: There should be two outputs - one for the items included according to
 // the filter, and one for the items excluded.
 //
@@ -22,28 +19,19 @@ export default templateCompositeFrom({
   inputs: {
     list: input({type: 'array'}),
     filter: input({type: 'array'}),
-
-    flip: input({
-      type: 'boolean',
-      defaultValue: false,
-    }),
   },
 
   outputs: ['#filteredList'],
 
   steps: () => [
     {
-      dependencies: [input('list'), input('filter'), input('flip')],
+      dependencies: [input('list'), input('filter')],
       compute: (continuation, {
         [input('list')]: list,
         [input('filter')]: filter,
-        [input('flip')]: flip,
       }) => continuation({
         '#filteredList':
-          list.filter((_item, index) =>
-            (flip
-              ? !filter[index]
-              :  filter[index])),
+          list.filter((_item, index) => filter[index]),
       }),
     },
   ],
diff --git a/src/data/composite/data/withNearbyItemFromList.js b/src/data/composite/data/withNearbyItemFromList.js
index 83a8cc21..5e165219 100644
--- a/src/data/composite/data/withNearbyItemFromList.js
+++ b/src/data/composite/data/withNearbyItemFromList.js
@@ -9,6 +9,10 @@
 //  - If the 'valuePastEdge' input is provided, that value will be output
 //    instead of null.
 //
+//  - If the 'filter' input is provided, corresponding items will be skipped,
+//    and only (repeating `offset`) the next included in the filter will be
+//    returned.
+//
 // Both the list and item must be provided.
 //
 // See also:
@@ -16,7 +20,6 @@
 //
 
 import {input, templateCompositeFrom} from '#composite';
-import {atOffset} from '#sugar';
 
 import {raiseOutputWithoutDependency} from '#composite/control-flow';
 
@@ -28,9 +31,12 @@ export default templateCompositeFrom({
   inputs: {
     list: input({acceptsNull: false, type: 'array'}),
     item: input({acceptsNull: false}),
-
     offset: input({type: 'number'}),
+
     wrap: input({type: 'boolean', defaultValue: false}),
+    valuePastEdge: input({defaultValue: null}),
+
+    filter: input({defaultValue: null, type: 'array'}),
   },
 
   outputs: ['#nearbyItem'],
@@ -45,29 +51,55 @@ export default templateCompositeFrom({
       dependency: '#index',
       mode: input.value('index'),
 
-      output: input.value({
-        ['#nearbyItem']:
-          null,
-      }),
+      output: input.value({'#nearbyItem': null}),
     }),
 
     {
       dependencies: [
         input('list'),
         input('offset'),
+
         input('wrap'),
+        input('valuePastEdge'),
+
+        input('filter'),
+
         '#index',
       ],
 
       compute: (continuation, {
         [input('list')]: list,
         [input('offset')]: offset,
+
         [input('wrap')]: wrap,
+        [input('valuePastEdge')]: valuePastEdge,
+
+        [input('filter')]: filter,
+
         ['#index']: index,
-      }) => continuation({
-        ['#nearbyItem']:
-          atOffset(list, index, offset, {wrap}),
-      }),
+      }) => {
+        const startIndex = index;
+
+        do {
+          index += offset;
+
+          if (wrap) {
+            index = index % list.length;
+          } else if (index < 0) {
+            return continuation({'#nearbyItem': valuePastEdge});
+          } else if (index >= list.length) {
+            return continuation({'#nearbyItem': valuePastEdge});
+          }
+
+          if (filter && !filter[index]) {
+            continue;
+          }
+
+          return continuation({'#nearbyItem': list[index]});
+        } while (index !== startIndex);
+
+        return continuation({'#nearbyItem': null});
+      },
     },
   ],
 });
diff --git a/src/data/composite/data/withPropertyFromObject.js b/src/data/composite/data/withPropertyFromObject.js
index 4f240506..7b452b99 100644
--- a/src/data/composite/data/withPropertyFromObject.js
+++ b/src/data/composite/data/withPropertyFromObject.js
@@ -13,6 +13,21 @@
 import CacheableObject from '#cacheable-object';
 import {input, templateCompositeFrom} from '#composite';
 
+function getOutputName({
+  [input.staticDependency('object')]: object,
+  [input.staticValue('property')]: property,
+}) {
+  if (object && property) {
+    if (object.startsWith('#')) {
+      return `${object}.${property}`;
+    } else {
+      return `#${object}.${property}`;
+    }
+  } else {
+    return '#value';
+  }
+}
+
 export default templateCompositeFrom({
   annotation: `withPropertyFromObject`,
 
@@ -22,15 +37,7 @@ export default templateCompositeFrom({
     internal: input({type: 'boolean', defaultValue: false}),
   },
 
-  outputs: ({
-    [input.staticDependency('object')]: object,
-    [input.staticValue('property')]: property,
-  }) =>
-    (object && property
-      ? (object.startsWith('#')
-          ? [`${object}.${property}`]
-          : [`#${object}.${property}`])
-      : ['#value']),
+  outputs: inputs => [getOutputName(inputs)],
 
   steps: () => [
     {
@@ -39,17 +46,8 @@ export default templateCompositeFrom({
         input.staticValue('property'),
       ],
 
-      compute: (continuation, {
-        [input.staticDependency('object')]: object,
-        [input.staticValue('property')]: property,
-      }) => continuation({
-        '#output':
-          (object && property
-            ? (object.startsWith('#')
-                ? `${object}.${property}`
-                : `#${object}.${property}`)
-            : '#value'),
-      }),
+      compute: (continuation, inputs) =>
+        continuation({'#output': getOutputName(inputs)}),
     },
 
     {
diff --git a/src/data/composite/things/artwork/index.js b/src/data/composite/things/artwork/index.js
index b92bff72..3693c10f 100644
--- a/src/data/composite/things/artwork/index.js
+++ b/src/data/composite/things/artwork/index.js
@@ -1 +1,5 @@
+export {default as withAttachedArtwork} from './withAttachedArtwork.js';
+export {default as withContainingArtworkList} from './withContainingArtworkList.js';
+export {default as withContribsFromAttachedArtwork} from './withContribsFromAttachedArtwork.js';
 export {default as withDate} from './withDate.js';
+export {default as withPropertyFromAttachedArtwork} from './withPropertyFromAttachedArtwork.js';
diff --git a/src/data/composite/things/artwork/withAttachedArtwork.js b/src/data/composite/things/artwork/withAttachedArtwork.js
new file mode 100644
index 00000000..d7c0d87b
--- /dev/null
+++ b/src/data/composite/things/artwork/withAttachedArtwork.js
@@ -0,0 +1,43 @@
+import {input, templateCompositeFrom} from '#composite';
+
+import {flipFilter, raiseOutputWithoutDependency}
+  from '#composite/control-flow';
+import {withNearbyItemFromList, withPropertyFromList} from '#composite/data';
+
+import withContainingArtworkList from './withContainingArtworkList.js';
+
+export default templateCompositeFrom({
+  annotaion: `withContribsFromMainArtwork`,
+
+  outputs: ['#attachedArtwork'],
+
+  steps: () => [
+    raiseOutputWithoutDependency({
+      dependency: 'attachAbove',
+      mode: input.value('falsy'),
+      output: input.value({'#attachedArtwork': null}),
+    }),
+
+    withContainingArtworkList(),
+
+    withPropertyFromList({
+      list: '#containingArtworkList',
+      property: input.value('attachAbove'),
+    }),
+
+    flipFilter({
+      filter: '#containingArtworkList.attachAbove',
+    }).outputs({
+      '#containingArtworkList.attachAbove': '#filterNotAttached',
+    }),
+
+    withNearbyItemFromList({
+      list: '#containingArtworkList',
+      item: input.myself(),
+      offset: input.value(-1),
+      filter: '#filterNotAttached',
+    }).outputs({
+      '#nearbyItem': '#attachedArtwork',
+    }),
+  ],
+});
diff --git a/src/data/composite/things/artwork/withContainingArtworkList.js b/src/data/composite/things/artwork/withContainingArtworkList.js
new file mode 100644
index 00000000..9c928ffd
--- /dev/null
+++ b/src/data/composite/things/artwork/withContainingArtworkList.js
@@ -0,0 +1,46 @@
+// Gets the list of artworks which contains this one, which is functionally
+// equivalent to `this.thing[this.thingProperty]`. If the exposed value is not
+// a list at all (i.e. the property holds a single artwork), this composition
+// outputs null.
+
+import {input, templateCompositeFrom} from '#composite';
+
+import {raiseOutputWithoutDependency} from '#composite/control-flow';
+import {withPropertyFromObject} from '#composite/data';
+
+export default templateCompositeFrom({
+  annotation: `withContainingArtworkList`,
+
+  outputs: ['#containingArtworkList'],
+
+  steps: () => [
+    raiseOutputWithoutDependency({
+      dependency: 'thing',
+      output: input.value({'#containingArtworkList': null}),
+    }),
+
+    raiseOutputWithoutDependency({
+      dependency: 'thingProperty',
+      output: input.value({'#containingArtworkList': null}),
+    }),
+
+    withPropertyFromObject({
+      object: 'thing',
+      property: 'thingProperty',
+    }).outputs({
+      '#value': '#containingValue',
+    }),
+
+    {
+      dependencies: ['#containingValue'],
+      compute: (continuation, {
+        ['#containingValue']: containingValue,
+      }) => continuation({
+        ['#containingArtworkList']:
+          (Array.isArray(containingValue)
+            ? containingValue
+            : null),
+      }),
+    },
+  ],
+});
diff --git a/src/data/composite/things/artwork/withContribsFromAttachedArtwork.js b/src/data/composite/things/artwork/withContribsFromAttachedArtwork.js
new file mode 100644
index 00000000..36abb3fe
--- /dev/null
+++ b/src/data/composite/things/artwork/withContribsFromAttachedArtwork.js
@@ -0,0 +1,28 @@
+import {input, templateCompositeFrom} from '#composite';
+
+import {raiseOutputWithoutDependency} from '#composite/control-flow';
+import {withPropertyFromObject} from '#composite/data';
+import {withRecontextualizedContributionList} from '#composite/wiki-data';
+
+import withPropertyFromAttachedArtwork from './withPropertyFromAttachedArtwork.js';
+
+export default templateCompositeFrom({
+  annotaion: `withContribsFromAttachedArtwork`,
+
+  outputs: ['#attachedArtwork.artistContribs'],
+
+  steps: () => [
+    withPropertyFromAttachedArtwork({
+      property: input.value('artistContribs'),
+    }),
+
+    raiseOutputWithoutDependency({
+      dependency: '#attachedArtwork.artistContribs',
+      output: input.value({'#attachedArtwork.artistContribs': null}),
+    }),
+
+    withRecontextualizedContributionList({
+      list: '#attachedArtwork.artistContribs',
+    }),
+  ],
+});
diff --git a/src/data/composite/things/artwork/withPropertyFromAttachedArtwork.js b/src/data/composite/things/artwork/withPropertyFromAttachedArtwork.js
new file mode 100644
index 00000000..a2f954b9
--- /dev/null
+++ b/src/data/composite/things/artwork/withPropertyFromAttachedArtwork.js
@@ -0,0 +1,65 @@
+import {input, templateCompositeFrom} from '#composite';
+
+import {withResultOfAvailabilityCheck} from '#composite/control-flow';
+import {withPropertyFromObject} from '#composite/data';
+
+import withAttachedArtwork from './withAttachedArtwork.js';
+
+function getOutputName({
+  [input.staticValue('property')]: property,
+}) {
+  if (property) {
+    return `#attachedArtwork.${property}`;
+  } else {
+    return '#value';
+  }
+}
+
+export default templateCompositeFrom({
+  annotation: `withPropertyFromAttachedArtwork`,
+
+  inputs: {
+    property: input({type: 'string'}),
+  },
+
+  outputs: inputs => [getOutputName(inputs)],
+
+  steps: () => [
+    {
+      dependencies: [input.staticValue('property')],
+      compute: (continuation, inputs) =>
+        continuation({'#output': getOutputName(inputs)}),
+    },
+
+    withAttachedArtwork(),
+
+    withResultOfAvailabilityCheck({
+      from: '#attachedArtwork',
+    }),
+
+    {
+      dependencies: ['#availability', '#output'],
+      compute: (continuation, {
+        ['#availability']: availability,
+        ['#output']: output,
+      }) =>
+        (availability
+          ? continuation()
+          : continuation.raiseOutput({[output]: null})),
+    },
+
+    withPropertyFromObject({
+      object: '#attachedArtwork',
+      property: input('property'),
+    }),
+
+    {
+      dependencies: ['#value', '#output'],
+      compute: (continuation, {
+        ['#value']: value,
+        ['#output']: output,
+      }) =>
+        continuation.raiseOutput({[output]: value}),
+    },
+  ],
+});
diff --git a/src/data/composite/things/commentary-entry/index.js b/src/data/composite/things/commentary-entry/index.js
new file mode 100644
index 00000000..091bae1a
--- /dev/null
+++ b/src/data/composite/things/commentary-entry/index.js
@@ -0,0 +1 @@
+export {default as withWebArchiveDate} from './withWebArchiveDate.js';
diff --git a/src/data/composite/things/commentary-entry/withWebArchiveDate.js b/src/data/composite/things/commentary-entry/withWebArchiveDate.js
new file mode 100644
index 00000000..3aaa4f64
--- /dev/null
+++ b/src/data/composite/things/commentary-entry/withWebArchiveDate.js
@@ -0,0 +1,41 @@
+import {input, templateCompositeFrom} from '#composite';
+
+import {raiseOutputWithoutDependency} from '#composite/control-flow';
+
+export default templateCompositeFrom({
+  annotation: `withWebArchiveDate`,
+
+  outputs: ['#webArchiveDate'],
+
+  steps: () => [
+    {
+      dependencies: ['annotation'],
+
+      compute: (continuation, {annotation}) =>
+        continuation({
+          ['#dateText']:
+            annotation
+              ?.match(/https?:\/\/web.archive.org\/web\/([0-9]{8,8})[0-9]*\//)
+              ?.[1] ??
+            null,
+        }),
+    },
+
+    raiseOutputWithoutDependency({
+      dependency: '#dateText',
+      output: input.value({['#webArchiveDate']: null}),
+    }),
+
+    {
+      dependencies: ['#dateText'],
+      compute: (continuation, {['#dateText']: dateText}) =>
+        continuation({
+          ['#webArchiveDate']:
+            new Date(
+              dateText.slice(0, 4) + '/' +
+              dateText.slice(4, 6) + '/' +
+              dateText.slice(6, 8)),
+        }),
+    },
+  ],
+});
diff --git a/src/data/composite/wiki-data/index.js b/src/data/composite/wiki-data/index.js
index 1d94f74b..005c68c0 100644
--- a/src/data/composite/wiki-data/index.js
+++ b/src/data/composite/wiki-data/index.js
@@ -11,15 +11,11 @@ export {default as inputNotFoundMode} from './inputNotFoundMode.js';
 export {default as inputSoupyFind} from './inputSoupyFind.js';
 export {default as inputSoupyReverse} from './inputSoupyReverse.js';
 export {default as inputWikiData} from './inputWikiData.js';
-export {default as processContentEntryDates} from './processContentEntryDates.js';
 export {default as withClonedThings} from './withClonedThings.js';
 export {default as withConstitutedArtwork} from './withConstitutedArtwork.js';
 export {default as withContributionListSums} from './withContributionListSums.js';
 export {default as withCoverArtDate} from './withCoverArtDate.js';
 export {default as withDirectory} from './withDirectory.js';
-export {default as withParsedCommentaryEntries} from './withParsedCommentaryEntries.js';
-export {default as withParsedContentEntries} from './withParsedContentEntries.js';
-export {default as withParsedLyricsEntries} from './withParsedLyricsEntries.js';
 export {default as withRecontextualizedContributionList} from './withRecontextualizedContributionList.js';
 export {default as withRedatedContributionList} from './withRedatedContributionList.js';
 export {default as withResolvedAnnotatedReferenceList} from './withResolvedAnnotatedReferenceList.js';
diff --git a/src/data/composite/wiki-data/processContentEntryDates.js b/src/data/composite/wiki-data/processContentEntryDates.js
deleted file mode 100644
index e418a121..00000000
--- a/src/data/composite/wiki-data/processContentEntryDates.js
+++ /dev/null
@@ -1,181 +0,0 @@
-import {input, templateCompositeFrom} from '#composite';
-import {stitchArrays} from '#sugar';
-import {isContentString, isString, looseArrayOf} from '#validators';
-
-import {fillMissingListItems} from '#composite/data';
-
-// Important note: These two kinds of inputs have the exact same shape!!
-// This isn't on purpose (besides that they *are* both supposed to be strings).
-// They just don't have any more particular validation, yet.
-
-const inputDateList = defaultDependency =>
-  input({
-    validate: looseArrayOf(isString),
-    defaultDependency,
-  });
-
-const inputKindList = defaultDependency =>
-  input.staticDependency({
-    validate: looseArrayOf(isString),
-    defaultDependency: defaultDependency,
-  });
-
-export default templateCompositeFrom({
-  annotation: `processContentEntryDates`,
-
-  inputs: {
-    annotations: input({
-      validate: looseArrayOf(isContentString),
-      defaultDependency: '#entries.annotation',
-    }),
-
-    dates: inputDateList('#entries.date'),
-    secondDates: inputDateList('#entries.secondDate'),
-    accessDates: inputDateList('#entries.accessDate'),
-
-    dateKinds: inputKindList('#entries.dateKind'),
-    accessKinds: inputKindList('#entries.accessKind'),
-  },
-
-  outputs: ({
-    [input.staticDependency('dates')]: dates,
-    [input.staticDependency('secondDates')]: secondDates,
-    [input.staticDependency('accessDates')]: accessDates,
-    [input.staticDependency('dateKinds')]: dateKinds,
-    [input.staticDependency('accessKinds')]: accessKinds,
-  }) => [
-    dates ?? '#processedContentEntryDates',
-    secondDates ?? '#processedContentEntrySecondDates',
-    accessDates ?? '#processedContentEntryAccessDates',
-    dateKinds ?? '#processedContentEntryDateKinds',
-    accessKinds ?? '#processedContentEntryAccessKinds',
-  ],
-
-  steps: () => [
-    {
-      dependencies: [input('annotations')],
-      compute: (continuation, {
-        [input('annotations')]: annotations,
-      }) => continuation({
-        ['#webArchiveDates']:
-          annotations
-            .map(text => text?.match(/https?:\/\/web.archive.org\/web\/([0-9]{8,8})[0-9]*\//))
-            .map(match => match?.[1])
-            .map(dateText =>
-              (dateText
-                ? dateText.slice(0, 4) + '/' +
-                  dateText.slice(4, 6) + '/' +
-                  dateText.slice(6, 8)
-                : null)),
-      }),
-    },
-
-    {
-      dependencies: [input('dates')],
-      compute: (continuation, {
-        [input('dates')]: dates,
-      }) => continuation({
-        ['#processedContentEntryDates']:
-          dates
-            .map(date => date ? new Date(date) : null),
-      }),
-    },
-
-    {
-      dependencies: [input('secondDates')],
-      compute: (continuation, {
-        [input('secondDates')]: secondDates,
-      }) => continuation({
-        ['#processedContentEntrySecondDates']:
-          secondDates
-            .map(date => date ? new Date(date) : null),
-      }),
-    },
-
-    fillMissingListItems({
-      list: input('dateKinds'),
-      fill: input.value(null),
-    }).outputs({
-      '#list': '#processedContentEntryDateKinds',
-    }),
-
-    {
-      dependencies: [input('accessDates'), '#webArchiveDates'],
-      compute: (continuation, {
-        [input('accessDates')]: accessDates,
-        ['#webArchiveDates']: webArchiveDates,
-      }) => continuation({
-        ['#processedContentEntryAccessDates']:
-          stitchArrays({
-            accessDate: accessDates,
-            webArchiveDate: webArchiveDates
-          }).map(({accessDate, webArchiveDate}) =>
-              accessDate ??
-              webArchiveDate ??
-              null)
-            .map(date => date ? new Date(date) : date),
-      }),
-    },
-
-    {
-      dependencies: [input('accessKinds'), '#webArchiveDates'],
-      compute: (continuation, {
-        [input('accessKinds')]: accessKinds,
-        ['#webArchiveDates']: webArchiveDates,
-      }) => continuation({
-        ['#processedContentEntryAccessKinds']:
-          stitchArrays({
-            accessKind: accessKinds,
-            webArchiveDate: webArchiveDates,
-          }).map(({accessKind, webArchiveDate}) =>
-              accessKind ??
-              (webArchiveDate && 'captured') ??
-              null),
-      }),
-    },
-
-    // TODO: Annoying conversion step for outputs, would be nice to avoid.
-    {
-      dependencies: [
-        '#processedContentEntryDates',
-        '#processedContentEntrySecondDates',
-        '#processedContentEntryAccessDates',
-        '#processedContentEntryDateKinds',
-        '#processedContentEntryAccessKinds',
-        input.staticDependency('dates'),
-        input.staticDependency('secondDates'),
-        input.staticDependency('accessDates'),
-        input.staticDependency('dateKinds'),
-        input.staticDependency('accessKinds'),
-      ],
-
-      compute: (continuation, {
-        ['#processedContentEntryDates']: processedContentEntryDates,
-        ['#processedContentEntrySecondDates']: processedContentEntrySecondDates,
-        ['#processedContentEntryAccessDates']: processedContentEntryAccessDates,
-        ['#processedContentEntryDateKinds']: processedContentEntryDateKinds,
-        ['#processedContentEntryAccessKinds']: processedContentEntryAccessKinds,
-        [input.staticDependency('dates')]: dates,
-        [input.staticDependency('secondDates')]: secondDates,
-        [input.staticDependency('accessDates')]: accessDates,
-        [input.staticDependency('dateKinds')]: dateKinds,
-        [input.staticDependency('accessKinds')]: accessKinds,
-      }) => continuation({
-        [dates ?? '#processedContentEntryDates']:
-          processedContentEntryDates,
-
-        [secondDates ?? '#processedContentEntrySecondDates']:
-          processedContentEntrySecondDates,
-
-        [accessDates ?? '#processedContentEntryAccessDates']:
-          processedContentEntryAccessDates,
-
-        [dateKinds ?? '#processedContentEntryDateKinds']:
-          processedContentEntryDateKinds,
-
-        [accessKinds ?? '#processedContentEntryAccessKinds']:
-          processedContentEntryAccessKinds,
-      }),
-    },
-  ],
-});
diff --git a/src/data/composite/wiki-data/withConstitutedArtwork.js b/src/data/composite/wiki-data/withConstitutedArtwork.js
index 9e260abf..6187d55b 100644
--- a/src/data/composite/wiki-data/withConstitutedArtwork.js
+++ b/src/data/composite/wiki-data/withConstitutedArtwork.js
@@ -6,6 +6,7 @@ export default templateCompositeFrom({
   annotation: `withConstitutedArtwork`,
 
   inputs: {
+    thingProperty: input({type: 'string', acceptsNull: true}),
     dimensionsFromThingProperty: input({type: 'string', acceptsNull: true}),
     fileExtensionFromThingProperty: input({type: 'string', acceptsNull: true}),
     dateFromThingProperty: input({type: 'string', acceptsNull: true}),
@@ -21,6 +22,7 @@ export default templateCompositeFrom({
     {
       dependencies: [
         input.myself(),
+        input('thingProperty'),
         input('dimensionsFromThingProperty'),
         input('fileExtensionFromThingProperty'),
         input('dateFromThingProperty'),
@@ -32,6 +34,7 @@ export default templateCompositeFrom({
 
       compute: (continuation, {
         [input.myself()]: myself,
+        [input('thingProperty')]: thingProperty,
         [input('dimensionsFromThingProperty')]: dimensionsFromThingProperty,
         [input('fileExtensionFromThingProperty')]: fileExtensionFromThingProperty,
         [input('dateFromThingProperty')]: dateFromThingProperty,
@@ -43,6 +46,7 @@ export default templateCompositeFrom({
         ['#constitutedArtwork']:
           Object.assign(new thingConstructors.Artwork, {
             thing: myself,
+            thingProperty,
             dimensionsFromThingProperty,
             fileExtensionFromThingProperty,
             artistContribsFromThingProperty,
diff --git a/src/data/composite/wiki-data/withParsedCommentaryEntries.js b/src/data/composite/wiki-data/withParsedCommentaryEntries.js
deleted file mode 100644
index 6794c479..00000000
--- a/src/data/composite/wiki-data/withParsedCommentaryEntries.js
+++ /dev/null
@@ -1,129 +0,0 @@
-import {input, templateCompositeFrom} from '#composite';
-import {stitchArrays} from '#sugar';
-import {isCommentary} from '#validators';
-import {commentaryRegexCaseSensitive} from '#wiki-data';
-
-import {
-  fillMissingListItems,
-  withFlattenedList,
-  withPropertiesFromList,
-  withUnflattenedList,
-} from '#composite/data';
-
-import inputSoupyFind from './inputSoupyFind.js';
-import processContentEntryDates from './processContentEntryDates.js';
-import withParsedContentEntries from './withParsedContentEntries.js';
-import withResolvedReferenceList from './withResolvedReferenceList.js';
-
-export default templateCompositeFrom({
-  annotation: `withParsedCommentaryEntries`,
-
-  inputs: {
-    from: input({validate: isCommentary}),
-  },
-
-  outputs: ['#parsedCommentaryEntries'],
-
-  steps: () => [
-    withParsedContentEntries({
-      from: input('from'),
-      caseSensitiveRegex: input.value(commentaryRegexCaseSensitive),
-    }),
-
-    withPropertiesFromList({
-      list: '#parsedContentEntryHeadings',
-      prefix: input.value('#entries'),
-      properties: input.value([
-        'artistReferences',
-        'artistDisplayText',
-        'annotation',
-        'date',
-        'secondDate',
-        'dateKind',
-        'accessDate',
-        'accessKind',
-      ]),
-    }),
-
-    // The artistReferences group will always have a value, since it's required
-    // for the line to match in the first place.
-
-    {
-      dependencies: ['#entries.artistReferences'],
-      compute: (continuation, {
-        ['#entries.artistReferences']: artistReferenceTexts,
-      }) => continuation({
-        ['#entries.artistReferences']:
-          artistReferenceTexts
-            .map(text => text.split(',').map(ref => ref.trim())),
-      }),
-    },
-
-    withFlattenedList({
-      list: '#entries.artistReferences',
-    }),
-
-    withResolvedReferenceList({
-      list: '#flattenedList',
-      find: inputSoupyFind.input('artist'),
-      notFoundMode: input.value('null'),
-    }),
-
-    withUnflattenedList({
-      list: '#resolvedReferenceList',
-    }).outputs({
-      '#unflattenedList': '#entries.artists',
-    }),
-
-    fillMissingListItems({
-      list: '#entries.artistDisplayText',
-      fill: input.value(null),
-    }),
-
-    fillMissingListItems({
-      list: '#entries.annotation',
-      fill: input.value(null),
-    }),
-
-    processContentEntryDates(),
-
-    {
-      dependencies: [
-        '#entries.artists',
-        '#entries.artistDisplayText',
-        '#entries.annotation',
-        '#entries.date',
-        '#entries.secondDate',
-        '#entries.dateKind',
-        '#entries.accessDate',
-        '#entries.accessKind',
-        '#parsedContentEntryBodies',
-      ],
-
-      compute: (continuation, {
-        ['#entries.artists']: artists,
-        ['#entries.artistDisplayText']: artistDisplayText,
-        ['#entries.annotation']: annotation,
-        ['#entries.date']: date,
-        ['#entries.secondDate']: secondDate,
-        ['#entries.dateKind']: dateKind,
-        ['#entries.accessDate']: accessDate,
-        ['#entries.accessKind']: accessKind,
-        ['#parsedContentEntryBodies']: body,
-      }) => continuation({
-        ['#parsedCommentaryEntries']:
-          stitchArrays({
-            artists,
-            artistDisplayText,
-            annotation,
-            date,
-            secondDate,
-            dateKind,
-            accessDate,
-            accessKind,
-            body,
-          }),
-      }),
-    },
-  ],
-});
diff --git a/src/data/composite/wiki-data/withParsedContentEntries.js b/src/data/composite/wiki-data/withParsedContentEntries.js
deleted file mode 100644
index 2a9b3f6a..00000000
--- a/src/data/composite/wiki-data/withParsedContentEntries.js
+++ /dev/null
@@ -1,111 +0,0 @@
-import {input, templateCompositeFrom} from '#composite';
-import {stitchArrays} from '#sugar';
-import {isContentString, validateInstanceOf} from '#validators';
-
-import {withPropertiesFromList} from '#composite/data';
-
-export default templateCompositeFrom({
-  annotation: `withParsedContentEntries`,
-
-  inputs: {
-    // TODO: Is there any way to validate this input based on the *other*
-    // inputs proivded, i.e. regexes? This kind of just assumes the string
-    // has already been validated according to the form the regex expects,
-    // which *is* always the case (as used), but it seems a bit awkward.
-    from: input({validate: isContentString}),
-
-    caseSensitiveRegex: input({
-      validate: validateInstanceOf(RegExp),
-    }),
-  },
-
-  outputs: [
-    '#parsedContentEntryHeadings',
-    '#parsedContentEntryBodies',
-  ],
-
-  steps: () => [
-    {
-      dependencies: [
-        input('from'),
-        input('caseSensitiveRegex'),
-      ],
-
-      compute: (continuation, {
-        [input('from')]: commentaryText,
-        [input('caseSensitiveRegex')]: caseSensitiveRegex,
-      }) => continuation({
-        ['#rawMatches']:
-          Array.from(commentaryText.matchAll(caseSensitiveRegex)),
-      }),
-    },
-
-    withPropertiesFromList({
-      list: '#rawMatches',
-      properties: input.value([
-        '0', // The entire match as a string.
-        'groups',
-        'index',
-      ]),
-    }).outputs({
-      '#rawMatches.0': '#rawMatches.text',
-      '#rawMatches.groups': '#parsedContentEntryHeadings',
-      '#rawMatches.index': '#rawMatches.startIndex',
-    }),
-
-    {
-      dependencies: [
-        '#rawMatches.text',
-        '#rawMatches.startIndex',
-      ],
-
-      compute: (continuation, {
-        ['#rawMatches.text']: text,
-        ['#rawMatches.startIndex']: startIndex,
-      }) => continuation({
-        ['#rawMatches.endIndex']:
-          stitchArrays({text, startIndex})
-            .map(({text, startIndex}) => startIndex + text.length),
-      }),
-    },
-
-    {
-      dependencies: [
-        input('from'),
-        '#rawMatches.startIndex',
-        '#rawMatches.endIndex',
-      ],
-
-      compute: (continuation, {
-        [input('from')]: commentaryText,
-        ['#rawMatches.startIndex']: startIndex,
-        ['#rawMatches.endIndex']: endIndex,
-      }) => continuation({
-        ['#parsedContentEntryBodies']:
-          stitchArrays({startIndex, endIndex})
-            .map(({endIndex}, index, stitched) =>
-              (index === stitched.length - 1
-                ? commentaryText.slice(endIndex)
-                : commentaryText.slice(
-                    endIndex,
-                    stitched[index + 1].startIndex)))
-            .map(body => body.trim()),
-      }),
-    },
-
-    {
-      dependencies: [
-        '#parsedContentEntryHeadings',
-        '#parsedContentEntryBodies',
-      ],
-
-      compute: (continuation, {
-        ['#parsedContentEntryHeadings']: parsedContentEntryHeadings,
-        ['#parsedContentEntryBodies']: parsedContentEntryBodies,
-      }) => continuation({
-        ['#parsedContentEntryHeadings']: parsedContentEntryHeadings,
-        ['#parsedContentEntryBodies']: parsedContentEntryBodies,
-      })
-    }
-  ],
-});
diff --git a/src/data/composite/wiki-data/withParsedLyricsEntries.js b/src/data/composite/wiki-data/withParsedLyricsEntries.js
deleted file mode 100644
index d13bfbaa..00000000
--- a/src/data/composite/wiki-data/withParsedLyricsEntries.js
+++ /dev/null
@@ -1,157 +0,0 @@
-import {input, templateCompositeFrom} from '#composite';
-import {stitchArrays} from '#sugar';
-import {isLyrics} from '#validators';
-import {commentaryRegexCaseSensitive, oldStyleLyricsDetectionRegex}
-  from '#wiki-data';
-
-import {
-  fillMissingListItems,
-  withFlattenedList,
-  withPropertiesFromList,
-  withUnflattenedList,
-} from '#composite/data';
-
-import inputSoupyFind from './inputSoupyFind.js';
-import processContentEntryDates from './processContentEntryDates.js';
-import withParsedContentEntries from './withParsedContentEntries.js';
-import withResolvedReferenceList from './withResolvedReferenceList.js';
-
-function constituteLyricsEntry(text) {
-  return {
-    artists: [],
-    artistDisplayText: null,
-    annotation: null,
-    date: null,
-    secondDate: null,
-    dateKind: null,
-    accessDate: null,
-    accessKind: null,
-    body: text,
-  };
-}
-
-export default templateCompositeFrom({
-  annotation: `withParsedLyricsEntries`,
-
-  inputs: {
-    from: input({validate: isLyrics}),
-  },
-
-  outputs: ['#parsedLyricsEntries'],
-
-  steps: () => [
-    {
-      dependencies: [input('from')],
-      compute: (continuation, {
-        [input('from')]: lyrics,
-      }) =>
-        (oldStyleLyricsDetectionRegex.test(lyrics)
-          ? continuation()
-          : continuation.raiseOutput({
-              ['#parsedLyricsEntries']:
-                [constituteLyricsEntry(lyrics)],
-            })),
-    },
-
-    withParsedContentEntries({
-      from: input('from'),
-      caseSensitiveRegex: input.value(commentaryRegexCaseSensitive),
-    }),
-
-    withPropertiesFromList({
-      list: '#parsedContentEntryHeadings',
-      prefix: input.value('#entries'),
-      properties: input.value([
-        'artistReferences',
-        'artistDisplayText',
-        'annotation',
-        'date',
-        'secondDate',
-        'dateKind',
-        'accessDate',
-        'accessKind',
-      ]),
-    }),
-
-    // The artistReferences group will always have a value, since it's required
-    // for the line to match in the first place.
-
-    {
-      dependencies: ['#entries.artistReferences'],
-      compute: (continuation, {
-        ['#entries.artistReferences']: artistReferenceTexts,
-      }) => continuation({
-        ['#entries.artistReferences']:
-          artistReferenceTexts
-            .map(text => text.split(',').map(ref => ref.trim())),
-      }),
-    },
-
-    withFlattenedList({
-      list: '#entries.artistReferences',
-    }),
-
-    withResolvedReferenceList({
-      list: '#flattenedList',
-      find: inputSoupyFind.input('artist'),
-      notFoundMode: input.value('null'),
-    }),
-
-    withUnflattenedList({
-      list: '#resolvedReferenceList',
-    }).outputs({
-      '#unflattenedList': '#entries.artists',
-    }),
-
-    fillMissingListItems({
-      list: '#entries.artistDisplayText',
-      fill: input.value(null),
-    }),
-
-    fillMissingListItems({
-      list: '#entries.annotation',
-      fill: input.value(null),
-    }),
-
-    processContentEntryDates(),
-
-    {
-      dependencies: [
-        '#entries.artists',
-        '#entries.artistDisplayText',
-        '#entries.annotation',
-        '#entries.date',
-        '#entries.secondDate',
-        '#entries.dateKind',
-        '#entries.accessDate',
-        '#entries.accessKind',
-        '#parsedContentEntryBodies',
-      ],
-
-      compute: (continuation, {
-        ['#entries.artists']: artists,
-        ['#entries.artistDisplayText']: artistDisplayText,
-        ['#entries.annotation']: annotation,
-        ['#entries.date']: date,
-        ['#entries.secondDate']: secondDate,
-        ['#entries.dateKind']: dateKind,
-        ['#entries.accessDate']: accessDate,
-        ['#entries.accessKind']: accessKind,
-        ['#parsedContentEntryBodies']: body,
-      }) => continuation({
-        ['#parsedLyricsEntries']:
-          stitchArrays({
-            artists,
-            artistDisplayText,
-            annotation,
-            date,
-            secondDate,
-            dateKind,
-            accessDate,
-            accessKind,
-            body,
-          }),
-      }),
-    },
-  ],
-});
diff --git a/src/data/composite/wiki-properties/commentary.js b/src/data/composite/wiki-properties/commentary.js
deleted file mode 100644
index 928bbd1b..00000000
--- a/src/data/composite/wiki-properties/commentary.js
+++ /dev/null
@@ -1,34 +0,0 @@
-// Artist commentary! Generally present on tracks and albums.
-
-import {input, templateCompositeFrom} from '#composite';
-import {isCommentary} from '#validators';
-
-import {exitWithoutDependency, exposeDependency}
-  from '#composite/control-flow';
-import {withParsedCommentaryEntries} from '#composite/wiki-data';
-
-export default templateCompositeFrom({
-  annotation: `commentary`,
-
-  compose: false,
-
-  update: {
-    validate: isCommentary,
-  },
-
-  steps: () => [
-    exitWithoutDependency({
-      dependency: input.updateValue(),
-      mode: input.value('falsy'),
-      value: input.value([]),
-    }),
-
-    withParsedCommentaryEntries({
-      from: input.updateValue(),
-    }),
-
-    exposeDependency({
-      dependency: '#parsedCommentaryEntries',
-    }),
-  ],
-});
diff --git a/src/data/composite/wiki-properties/commentatorArtists.js b/src/data/composite/wiki-properties/commentatorArtists.js
index c5c14769..54d3e1a5 100644
--- a/src/data/composite/wiki-properties/commentatorArtists.js
+++ b/src/data/composite/wiki-properties/commentatorArtists.js
@@ -7,7 +7,6 @@ import {exitWithoutDependency, exposeDependency}
   from '#composite/control-flow';
 import {withFlattenedList, withPropertyFromList, withUniqueItemsOnly}
   from '#composite/data';
-import {withParsedCommentaryEntries} from '#composite/wiki-data';
 
 export default templateCompositeFrom({
   annotation: `commentatorArtists`,
@@ -21,19 +20,13 @@ export default templateCompositeFrom({
       value: input.value([]),
     }),
 
-    withParsedCommentaryEntries({
-      from: 'commentary',
-    }),
-
     withPropertyFromList({
-      list: '#parsedCommentaryEntries',
+      list: 'commentary',
       property: input.value('artists'),
-    }).outputs({
-      '#parsedCommentaryEntries.artists': '#artistLists',
     }),
 
     withFlattenedList({
-      list: '#artistLists',
+      list: '#commentary.artists',
     }).outputs({
       '#flattenedList': '#artists',
     }),
diff --git a/src/data/composite/wiki-properties/constitutibleArtwork.js b/src/data/composite/wiki-properties/constitutibleArtwork.js
index 0ee3bfcd..48f4211a 100644
--- a/src/data/composite/wiki-properties/constitutibleArtwork.js
+++ b/src/data/composite/wiki-properties/constitutibleArtwork.js
@@ -17,6 +17,7 @@ const template = templateCompositeFrom({
   compose: false,
 
   inputs: {
+    thingProperty: input({type: 'string', acceptsNull: true}),
     dimensionsFromThingProperty: input({type: 'string', acceptsNull: true}),
     fileExtensionFromThingProperty: input({type: 'string', acceptsNull: true}),
     dateFromThingProperty: input({type: 'string', acceptsNull: true}),
@@ -35,6 +36,7 @@ const template = templateCompositeFrom({
     }),
 
     withConstitutedArtwork({
+      thingProperty: input('thingProperty'),
       dimensionsFromThingProperty: input('dimensionsFromThingProperty'),
       fileExtensionFromThingProperty: input('fileExtensionFromThingProperty'),
       dateFromThingProperty: input('dateFromThingProperty'),
diff --git a/src/data/composite/wiki-properties/constitutibleArtworkList.js b/src/data/composite/wiki-properties/constitutibleArtworkList.js
index 246c08b5..dad3a957 100644
--- a/src/data/composite/wiki-properties/constitutibleArtworkList.js
+++ b/src/data/composite/wiki-properties/constitutibleArtworkList.js
@@ -16,6 +16,7 @@ const template = templateCompositeFrom({
   compose: false,
 
   inputs: {
+    thingProperty: input({type: 'string', acceptsNull: true}),
     dimensionsFromThingProperty: input({type: 'string', acceptsNull: true}),
     fileExtensionFromThingProperty: input({type: 'string', acceptsNull: true}),
     dateFromThingProperty: input({type: 'string', acceptsNull: true}),
@@ -34,6 +35,7 @@ const template = templateCompositeFrom({
     }),
 
     withConstitutedArtwork({
+      thingProperty: input('thingProperty'),
       dimensionsFromThingProperty: input('dimensionsFromThingProperty'),
       fileExtensionFromThingProperty: input('fileExtensionFromThingProperty'),
       dateFromThingProperty: input('dateFromThingProperty'),
diff --git a/src/data/composite/wiki-properties/index.js b/src/data/composite/wiki-properties/index.js
index 892fc44a..d5e7657e 100644
--- a/src/data/composite/wiki-properties/index.js
+++ b/src/data/composite/wiki-properties/index.js
@@ -7,7 +7,6 @@ export {default as additionalFiles} from './additionalFiles.js';
 export {default as additionalNameList} from './additionalNameList.js';
 export {default as annotatedReferenceList} from './annotatedReferenceList.js';
 export {default as color} from './color.js';
-export {default as commentary} from './commentary.js';
 export {default as commentatorArtists} from './commentatorArtists.js';
 export {default as constitutibleArtwork} from './constitutibleArtwork.js';
 export {default as constitutibleArtworkList} from './constitutibleArtworkList.js';
@@ -20,7 +19,6 @@ export {default as duration} from './duration.js';
 export {default as externalFunction} from './externalFunction.js';
 export {default as fileExtension} from './fileExtension.js';
 export {default as flag} from './flag.js';
-export {default as lyrics} from './lyrics.js';
 export {default as name} from './name.js';
 export {default as referenceList} from './referenceList.js';
 export {default as referencedArtworkList} from './referencedArtworkList.js';
diff --git a/src/data/composite/wiki-properties/lyrics.js b/src/data/composite/wiki-properties/lyrics.js
deleted file mode 100644
index eb5e524a..00000000
--- a/src/data/composite/wiki-properties/lyrics.js
+++ /dev/null
@@ -1,36 +0,0 @@
-// Lyrics! This comes in two styles - "old", where there's just one set of
-// lyrics, or the newer/standard one, with multiple sets that are each
-// annotated, credited, etc.
-
-import {input, templateCompositeFrom} from '#composite';
-import {isLyrics} from '#validators';
-
-import {exitWithoutDependency, exposeDependency}
-  from '#composite/control-flow';
-import {withParsedLyricsEntries} from '#composite/wiki-data';
-
-export default templateCompositeFrom({
-  annotation: `lyrics`,
-
-  compose: false,
-
-  update: {
-    validate: isLyrics,
-  },
-
-  steps: () => [
-    exitWithoutDependency({
-      dependency: input.updateValue(),
-      mode: input.value('falsy'),
-      value: input.value([]),
-    }),
-
-    withParsedLyricsEntries({
-      from: input.updateValue(),
-    }),
-
-    exposeDependency({
-      dependency: '#parsedLyricsEntries',
-    }),
-  ],
-});
diff --git a/src/data/things/album.js b/src/data/things/album.js
index 4c85ddfa..c71b9820 100644
--- a/src/data/things/album.js
+++ b/src/data/things/album.js
@@ -3,6 +3,7 @@ export const DATA_ALBUM_DIRECTORY = 'album';
 import * as path from 'node:path';
 import {inspect} from 'node:util';
 
+import CacheableObject from '#cacheable-object';
 import {colors} from '#cli';
 import {input} from '#composite';
 import {traverse} from '#node-utils';
@@ -16,7 +17,9 @@ import {
   parseAdditionalNames,
   parseAnnotatedReferences,
   parseArtwork,
+  parseCommentary,
   parseContributors,
+  parseCreditingSources,
   parseDate,
   parseDimensions,
   parseWallpaperParts,
@@ -32,7 +35,6 @@ import {exitWithoutContribs, withDirectory, withCoverArtDate}
 import {
   additionalFiles,
   additionalNameList,
-  commentary,
   color,
   commentatorArtists,
   constitutibleArtwork,
@@ -69,6 +71,8 @@ export class Album extends Thing {
   static [Thing.getPropertyDescriptors] = ({
     ArtTag,
     Artwork,
+    CommentaryEntry,
+    CreditingSourcesEntry,
     Group,
     Track,
     TrackSection,
@@ -204,8 +208,14 @@ export class Album extends Thing {
     isListedOnHomepage: flag(true),
     isListedInGalleries: flag(true),
 
-    commentary: commentary(),
-    creditSources: commentary(),
+    commentary: thingList({
+      class: input.value(CommentaryEntry),
+    }),
+
+    creditSources: thingList({
+      class: input.value(CreditingSourcesEntry),
+    }),
+
     additionalFiles: additionalFiles(),
 
     trackSections: thingList({
@@ -506,6 +516,7 @@ export class Album extends Thing {
         property: 'coverArtworks',
         transform:
           parseArtwork({
+            thingProperty: 'coverArtworks',
             dimensionsFromThingProperty: 'coverArtDimensions',
             fileExtensionFromThingProperty: 'coverArtFileExtension',
             dateFromThingProperty: 'coverArtDate',
@@ -521,6 +532,7 @@ export class Album extends Thing {
         transform:
           parseArtwork({
             single: true,
+            thingProperty: 'bannerArtwork',
             dimensionsFromThingProperty: 'bannerDimensions',
             fileExtensionFromThingProperty: 'bannerFileExtension',
             dateFromThingProperty: 'date',
@@ -534,6 +546,7 @@ export class Album extends Thing {
         transform:
           parseArtwork({
             single: true,
+            thingProperty: 'wallpaperArtwork',
             dimensionsFromThingProperty: null,
             fileExtensionFromThingProperty: 'wallpaperFileExtension',
             dateFromThingProperty: 'date',
@@ -596,8 +609,15 @@ export class Album extends Thing {
         transform: parseDimensions,
       },
 
-      'Commentary': {property: 'commentary'},
-      'Credit Sources': {property: 'creditSources'},
+      'Commentary': {
+        property: 'commentary',
+        transform: parseCommentary,
+      },
+
+      'Credit Sources': {
+        property: 'creditSources',
+        transform: parseCreditingSources,
+      },
 
       'Additional Files': {
         property: 'additionalFiles',
@@ -668,7 +688,11 @@ export class Album extends Thing {
       const albumData = [];
       const trackSectionData = [];
       const trackData = [];
+
       const artworkData = [];
+      const commentaryData = [];
+      const creditingSourceData = [];
+      const lyricsData = [];
 
       for (const {header: album, entries} of results) {
         const trackSections = [];
@@ -715,6 +739,13 @@ export class Album extends Thing {
           entry.album = album;
 
           artworkData.push(...entry.trackArtworks);
+          commentaryData.push(...entry.commentary);
+          creditingSourceData.push(...entry.creditSources);
+
+          // TODO: As exposed, Track.lyrics tries to inherit from the main
+          // release, which is impossible before the data's been linked.
+          // We just use the update value here. But it's icky!
+          lyricsData.push(...CacheableObject.getUpdateValue(entry, 'lyrics') ?? []);
         }
 
         closeCurrentTrackSection();
@@ -731,6 +762,9 @@ export class Album extends Thing {
           artworkData.push(album.wallpaperArtwork);
         }
 
+        commentaryData.push(...album.commentary);
+        creditingSourceData.push(...album.creditSources);
+
         album.trackSections = trackSections;
       }
 
@@ -738,7 +772,11 @@ export class Album extends Thing {
         albumData,
         trackSectionData,
         trackData,
+
         artworkData,
+        commentaryData,
+        creditingSourceData,
+        lyricsData,
       };
     },
 
diff --git a/src/data/things/artist.js b/src/data/things/artist.js
index 87e1c563..9e329c74 100644
--- a/src/data/things/artist.js
+++ b/src/data/things/artist.js
@@ -213,6 +213,7 @@ export class Artist extends Thing {
         transform:
           parseArtwork({
             single: true,
+            thingProperty: 'avatarArtwork',
             fileExtensionFromThingProperty: 'avatarFileExtension',
           }),
       },
diff --git a/src/data/things/artwork.js b/src/data/things/artwork.js
index 2a97fd6d..3cdb07d0 100644
--- a/src/data/things/artwork.js
+++ b/src/data/things/artwork.js
@@ -24,7 +24,7 @@ import {
   parseDimensions,
 } from '#yaml';
 
-import {withPropertyFromObject} from '#composite/data';
+import {withIndexInList, withPropertyFromObject} from '#composite/data';
 
 import {
   exitWithoutDependency,
@@ -44,6 +44,7 @@ import {
 import {
   contentString,
   directory,
+  flag,
   reverseReferenceList,
   simpleString,
   soupyFind,
@@ -52,7 +53,13 @@ import {
   wikiData,
 } from '#composite/wiki-properties';
 
-import {withDate} from '#composite/things/artwork';
+import {
+  withAttachedArtwork,
+  withContainingArtworkList,
+  withContribsFromAttachedArtwork,
+  withPropertyFromAttachedArtwork,
+  withDate,
+} from '#composite/things/artwork';
 
 export class Artwork extends Thing {
   static [Thing.referenceType] = 'artwork';
@@ -68,6 +75,7 @@ export class Artwork extends Thing {
     }),
 
     thing: thing(),
+    thingProperty: simpleString(),
 
     label: simpleString(),
     source: contentString(),
@@ -152,6 +160,8 @@ export class Artwork extends Thing {
       }),
     ],
 
+    attachAbove: flag(false),
+
     artistContribsFromThingProperty: simpleString(),
     artistContribsArtistProperty: simpleString(),
 
@@ -169,6 +179,12 @@ export class Artwork extends Thing {
         mode: input.value('empty'),
       }),
 
+      withContribsFromAttachedArtwork(),
+
+      exposeDependencyOrContinue({
+        dependency: '#attachedArtwork.artistContribs',
+      }),
+
       exitWithoutDependency({
         dependency: 'artistContribsFromThingProperty',
         value: input.value([]),
@@ -207,6 +223,14 @@ export class Artwork extends Thing {
         mode: input.value('empty'),
       }),
 
+      withPropertyFromAttachedArtwork({
+        property: input.value('artTags'),
+      }),
+
+      exposeDependencyOrContinue({
+        dependency: '#attachedArtwork.artTags',
+      }),
+
       exitWithoutDependency({
         dependency: 'artTagsFromThingProperty',
         value: input.value([]),
@@ -302,6 +326,51 @@ export class Artwork extends Thing {
     referencedByArtworks: reverseReferenceList({
       reverse: soupyReverse.input('artworksWhichReference'),
     }),
+
+    isMainArtwork: [
+      withContainingArtworkList(),
+
+      exitWithoutDependency({
+        dependency: '#containingArtworkList',
+        value: input.value(null),
+      }),
+
+      {
+        dependencies: [input.myself(), '#containingArtworkList'],
+        compute: ({
+          [input.myself()]: myself,
+          ['#containingArtworkList']: list,
+        }) =>
+          list[0] === myself,
+      },
+    ],
+
+    mainArtwork: [
+      withContainingArtworkList(),
+
+      exitWithoutDependency({
+        dependency: '#containingArtworkList',
+        value: input.value(null),
+      }),
+
+      {
+        dependencies: ['#containingArtworkList'],
+        compute: ({'#containingArtworkList': list}) =>
+          list[0],
+      },
+    ],
+
+    attachedArtwork: [
+      withAttachedArtwork(),
+
+      exposeDependency({
+        dependency: '#attachedArtwork',
+      }),
+    ],
+
+    attachingArtworks: reverseReferenceList({
+      reverse: soupyReverse.input('artworksWhichAttach'),
+    }),
   });
 
   static [Thing.yamlDocumentSpec] = {
@@ -322,6 +391,8 @@ export class Artwork extends Thing {
         transform: parseDate,
       },
 
+      'Attach Above': {property: 'attachAbove'},
+
       'Artists': {
         property: 'artistContribs',
         transform: parseContributors,
@@ -358,6 +429,18 @@ export class Artwork extends Thing {
       date: ({artwork}) => artwork.date,
     },
 
+    artworksWhichAttach: {
+      bindTo: 'artworkData',
+
+      referencing: referencingArtwork =>
+        (referencingArtwork.attachAbove
+          ? [referencingArtwork]
+          : []),
+
+      referenced: referencingArtwork =>
+        [referencingArtwork.attachedArtwork],
+    },
+
     artworksWhichFeature: {
       bindTo: 'artworkData',
 
diff --git a/src/data/things/content.js b/src/data/things/content.js
new file mode 100644
index 00000000..7f352795
--- /dev/null
+++ b/src/data/things/content.js
@@ -0,0 +1,122 @@
+import {input} from '#composite';
+import find from '#find';
+import Thing from '#thing';
+import {is, isDate} from '#validators';
+import {parseDate} from '#yaml';
+
+import {contentString, referenceList, simpleDate, soupyFind, thing}
+  from '#composite/wiki-properties';
+
+import {
+  exposeConstant,
+  exposeDependencyOrContinue,
+  exposeUpdateValueOrContinue,
+  withResultOfAvailabilityCheck,
+} from '#composite/control-flow';
+
+import {withWebArchiveDate} from '#composite/things/commentary-entry';
+
+export class ContentEntry extends Thing {
+  static [Thing.getPropertyDescriptors] = ({Artist}) => ({
+    // Update & expose
+
+    thing: thing(),
+
+    artists: referenceList({
+      class: input.value(Artist),
+      find: soupyFind.input('artist'),
+    }),
+
+    artistText: contentString(),
+
+    annotation: contentString(),
+
+    dateKind: {
+      flags: {update: true, expose: true},
+
+      update: {
+        validate: is(...[
+          'sometime',
+          'throughout',
+          'around',
+        ]),
+      },
+    },
+
+    accessKind: [
+      exposeUpdateValueOrContinue({
+        validate: input.value(
+          is(...[
+            'captured',
+            'accessed',
+          ])),
+      }),
+
+      withWebArchiveDate(),
+
+      withResultOfAvailabilityCheck({
+        from: '#webArchiveDate',
+      }),
+
+      {
+        dependencies: ['#availability'],
+        compute: (continuation, {['#availability']: availability}) =>
+          (availability
+            ? continuation.exit('captured')
+            : continuation()),
+      },
+
+      exposeConstant({
+        value: input.value(null),
+      }),
+    ],
+
+    date: simpleDate(),
+
+    secondDate: simpleDate(),
+
+    accessDate: [
+      exposeUpdateValueOrContinue({
+        validate: input.value(isDate),
+      }),
+
+      withWebArchiveDate(),
+
+      exposeDependencyOrContinue({
+        dependency: '#webArchiveDate',
+      }),
+
+      exposeConstant({
+        value: input.value(null),
+      }),
+    ],
+
+    body: contentString(),
+
+    // Update only
+
+    find: soupyFind(),
+  });
+
+  static [Thing.yamlDocumentSpec] = {
+    fields: {
+      'Artists': {property: 'artists'},
+      'Artist Text': {property: 'artistText'},
+
+      'Annotation': {property: 'annotation'},
+
+      'Date Kind': {property: 'dateKind'},
+      'Access Kind': {property: 'accessKind'},
+
+      'Date': {property: 'date', transform: parseDate},
+      'Second Date': {property: 'secondDate', transform: parseDate},
+      'Access Date': {property: 'accessDate', transform: parseDate},
+
+      'Body': {property: 'body'},
+    },
+  };
+}
+
+export class CommentaryEntry extends ContentEntry {}
+export class LyricsEntry extends ContentEntry {}
+export class CreditingSourcesEntry extends ContentEntry {}
diff --git a/src/data/things/flash.js b/src/data/things/flash.js
index ace18af9..a0bcb523 100644
--- a/src/data/things/flash.js
+++ b/src/data/things/flash.js
@@ -10,7 +10,9 @@ import {anyOf, isColor, isContentString, isDirectory, isNumber, isString}
 import {
   parseArtwork,
   parseAdditionalNames,
+  parseCommentary,
   parseContributors,
+  parseCreditingSources,
   parseDate,
   parseDimensions,
 } from '#yaml';
@@ -27,7 +29,6 @@ import {
 import {
   additionalNameList,
   color,
-  commentary,
   commentatorArtists,
   constitutibleArtwork,
   contentString,
@@ -41,6 +42,7 @@ import {
   soupyFind,
   soupyReverse,
   thing,
+  thingList,
   urls,
   wikiData,
 } from '#composite/wiki-properties';
@@ -52,6 +54,8 @@ export class Flash extends Thing {
   static [Thing.referenceType] = 'flash';
 
   static [Thing.getPropertyDescriptors] = ({
+    CommentaryEntry,
+    CreditingSourcesEntry,
     Track,
     FlashAct,
     WikiInfo,
@@ -125,8 +129,13 @@ export class Flash extends Thing {
 
     additionalNames: additionalNameList(),
 
-    commentary: commentary(),
-    creditSources: commentary(),
+    commentary: thingList({
+      class: input.value(CommentaryEntry),
+    }),
+
+    creditSources: thingList({
+      class: input.value(CreditingSourcesEntry),
+    }),
 
     // Update only
 
@@ -221,6 +230,7 @@ export class Flash extends Thing {
         transform:
           parseArtwork({
             single: true,
+            thingProperty: 'coverArtwork',
             fileExtensionFromThingProperty: 'coverArtFileExtension',
             dimensionsFromThingProperty: 'coverArtDimensions',
           }),
@@ -240,8 +250,15 @@ export class Flash extends Thing {
         transform: parseContributors,
       },
 
-      'Commentary': {property: 'commentary'},
-      'Credit Sources': {property: 'creditSources'},
+      'Commentary': {
+        property: 'commentary',
+        transform: parseCommentary,
+      },
+
+      'Credit Sources': {
+        property: 'creditSources',
+        transform: parseCreditingSources,
+      },
 
       'Review Points': {ignore: true},
     },
@@ -441,8 +458,18 @@ export class FlashSide extends Thing {
       const flashSideData = results.filter(x => x instanceof FlashSide);
 
       const artworkData = flashData.map(flash => flash.coverArtwork);
-
-      return {flashData, flashActData, flashSideData, artworkData};
+      const commentaryData = flashData.flatMap(flash => flash.commentary);
+      const creditingSourceData = flashData.flatMap(flash => flash.creditSources);
+
+      return {
+        flashData,
+        flashActData,
+        flashSideData,
+
+        artworkData,
+        commentaryData,
+        creditingSourceData,
+      };
     },
 
     sort({flashData}) {
diff --git a/src/data/things/index.js b/src/data/things/index.js
index 96cec88e..b832ab75 100644
--- a/src/data/things/index.js
+++ b/src/data/things/index.js
@@ -13,6 +13,7 @@ import * as albumClasses from './album.js';
 import * as artTagClasses from './art-tag.js';
 import * as artistClasses from './artist.js';
 import * as artworkClasses from './artwork.js';
+import * as contentClasses from './content.js';
 import * as contributionClasses from './contribution.js';
 import * as flashClasses from './flash.js';
 import * as groupClasses from './group.js';
@@ -29,6 +30,7 @@ const allClassLists = {
   'art-tag.js': artTagClasses,
   'artist.js': artistClasses,
   'artwork.js': artworkClasses,
+  'content.js': contentClasses,
   'contribution.js': contributionClasses,
   'flash.js': flashClasses,
   'group.js': groupClasses,
diff --git a/src/data/things/track.js b/src/data/things/track.js
index bcf84aa8..57aaa90d 100644
--- a/src/data/things/track.js
+++ b/src/data/things/track.js
@@ -12,10 +12,13 @@ import {
   parseAdditionalNames,
   parseAnnotatedReferences,
   parseArtwork,
+  parseCommentary,
   parseContributors,
+  parseCreditingSources,
   parseDate,
   parseDimensions,
   parseDuration,
+  parseLyrics,
 } from '#yaml';
 
 import {withPropertyFromObject} from '#composite/data';
@@ -37,7 +40,6 @@ import {
 import {
   additionalFiles,
   additionalNameList,
-  commentary,
   commentatorArtists,
   constitutibleArtworkList,
   contentString,
@@ -46,7 +48,6 @@ import {
   directory,
   duration,
   flag,
-  lyrics,
   name,
   referenceList,
   referencedArtworkList,
@@ -57,6 +58,7 @@ import {
   soupyFind,
   soupyReverse,
   thing,
+  thingList,
   urls,
   wikiData,
 } from '#composite/wiki-properties';
@@ -87,7 +89,10 @@ export class Track extends Thing {
     Album,
     ArtTag,
     Artwork,
+    CommentaryEntry,
+    CreditingSourcesEntry,
     Flash,
+    LyricsEntry,
     TrackSection,
     WikiInfo,
   }) => ({
@@ -216,12 +221,23 @@ export class Track extends Thing {
       dimensions(),
     ],
 
-    commentary: commentary(),
-    creditSources: commentary(),
+    commentary: thingList({
+      class: input.value(CommentaryEntry),
+    }),
+
+    creditSources: thingList({
+      class: input.value(CreditingSourcesEntry),
+    }),
 
     lyrics: [
+      // TODO: Inherited lyrics are literally the same objects, so of course
+      // their .thing properties aren't going to point back to this one, and
+      // certainly couldn't be recontextualized...
       inheritFromMainRelease(),
-      lyrics(),
+
+      thingList({
+        class: input.value(LyricsEntry),
+      }),
     ],
 
     additionalFiles: additionalFiles(),
@@ -481,9 +497,20 @@ export class Track extends Thing {
 
       'Always Reference By Directory': {property: 'alwaysReferenceByDirectory'},
 
-      'Lyrics': {property: 'lyrics'},
-      'Commentary': {property: 'commentary'},
-      'Credit Sources': {property: 'creditSources'},
+      'Lyrics': {
+        property: 'lyrics',
+        transform: parseLyrics,
+      },
+
+      'Commentary': {
+        property: 'commentary',
+        transform: parseCommentary,
+      },
+
+      'Credit Sources': {
+        property: 'creditSources',
+        transform: parseCreditingSources,
+      },
 
       'Additional Files': {
         property: 'additionalFiles',
@@ -531,6 +558,7 @@ export class Track extends Thing {
         property: 'trackArtworks',
         transform:
           parseArtwork({
+            thingProperty: 'trackArtworks',
             dimensionsFromThingProperty: 'coverArtDimensions',
             fileExtensionFromThingProperty: 'coverArtFileExtension',
             dateFromThingProperty: 'coverArtDate',
diff --git a/src/data/yaml.js b/src/data/yaml.js
index 50317238..036fe8a7 100644
--- a/src/data/yaml.js
+++ b/src/data/yaml.js
@@ -11,6 +11,7 @@ import {colors, ENABLE_COLOR, logInfo, logWarn} from '#cli';
 import {sortByName} from '#sort';
 import Thing from '#thing';
 import thingConstructors from '#things';
+import {matchContentEntries, multipleLyricsDetectionRegex} from '#wiki-data';
 
 import {
   aggregateThrows,
@@ -791,6 +792,7 @@ export function parseAnnotatedReferences(entries, {
 
 export function parseArtwork({
   single = false,
+  thingProperty = null,
   dimensionsFromThingProperty = null,
   fileExtensionFromThingProperty = null,
   dateFromThingProperty = null,
@@ -800,6 +802,7 @@ export function parseArtwork({
   referencedArtworksFromThingProperty = null,
 }) {
   const provide = {
+    thingProperty,
     dimensionsFromThingProperty,
     fileExtensionFromThingProperty,
     dateFromThingProperty,
@@ -824,6 +827,73 @@ export function parseArtwork({
   return transform;
 }
 
+export function parseContentEntries(thingClass, sourceText, {subdoc}) {
+  const map = matchEntry => ({
+    'Artists':
+      matchEntry.artistReferences
+        .split(',')
+        .map(ref => ref.trim()),
+
+    'Artist Text':
+      matchEntry.artistDisplayText,
+
+    'Annotation':
+      matchEntry.annotation,
+
+    'Date':
+      matchEntry.date,
+
+    'Second Date':
+      matchEntry.secondDate,
+
+    'Date Kind':
+      matchEntry.dateKind,
+
+    'Access Date':
+      matchEntry.accessDate,
+
+    'Access Kind':
+      matchEntry.accessKind,
+
+    'Body':
+      matchEntry.body,
+  });
+
+  const documents =
+    matchContentEntries(sourceText)
+      .map(matchEntry =>
+        withEntries(
+          map(matchEntry),
+          entries => entries
+            .filter(([key, value]) =>
+              value !== undefined &&
+              value !== null)));
+
+  const subdocs =
+    documents.map(document =>
+      subdoc(thingClass, document, {bindInto: 'thing'}));
+
+  return subdocs;
+}
+
+export function parseCommentary(sourceText, {subdoc, CommentaryEntry}) {
+  return parseContentEntries(CommentaryEntry, sourceText, {subdoc});
+}
+
+export function parseCreditingSources(sourceText, {subdoc, CreditingSourcesEntry}) {
+  return parseContentEntries(CreditingSourcesEntry, sourceText, {subdoc});
+}
+
+export function parseLyrics(sourceText, {subdoc, LyricsEntry}) {
+  if (!multipleLyricsDetectionRegex.test(sourceText)) {
+    const document = {'Body': sourceText};
+
+    return [subdoc(LyricsEntry, document, {bindInto: 'thing'})];
+  }
+
+  return parseContentEntries(LyricsEntry, sourceText, {subdoc});
+}
+
 // documentModes: Symbols indicating sets of behavior for loading and processing
 // data files.
 export const documentModes = {
@@ -1499,6 +1569,10 @@ export function linkWikiDataArrays(wikiData, {bindFind, bindReverse}) {
 
     ['artworkData', ['artworkData']],
 
+    ['commentaryData', [/* find */]],
+
+    ['creditingSourceData', [/* find */]],
+
     ['flashData', [
       'wikiInfo',
     ]],
@@ -1513,6 +1587,8 @@ export function linkWikiDataArrays(wikiData, {bindFind, bindReverse}) {
 
     ['homepageLayout.sections.rows', [/* find */]],
 
+    ['lyricsData', [/* find */]],
+
     ['trackData', [
       'artworkData',
       'trackData',
@@ -1781,14 +1857,16 @@ export function flattenThingLayoutToDocumentOrder(layout) {
 }
 
 export function* splitDocumentsInYAMLSourceText(sourceText) {
-  const dividerRegex = /^-{3,}\n?/gm;
+  // Not multiline!
+  const dividerRegex = /(?:\r\n|\n|^)-{3,}(?:\r\n|\n|$)/g;
+
   let previousDivider = '';
 
   while (true) {
     const {lastIndex} = dividerRegex;
     const match = dividerRegex.exec(sourceText);
     if (match) {
-      const nextDivider = match[0].trim();
+      const nextDivider = match[0];
 
       yield {
         previousDivider,
@@ -1799,11 +1877,12 @@ export function* splitDocumentsInYAMLSourceText(sourceText) {
       previousDivider = nextDivider;
     } else {
       const nextDivider = '';
+      const lineBreak = previousDivider.match(/\r?\n/)?.[0] ?? '';
 
       yield {
         previousDivider,
         nextDivider,
-        text: sourceText.slice(lastIndex).replace(/(?<!\n)$/, '\n'),
+        text: sourceText.slice(lastIndex).replace(/(?<!\n)$/, lineBreak),
       };
 
       return;
@@ -1829,7 +1908,7 @@ export function recombineDocumentsIntoYAMLSourceText(documents) {
 
   for (const document of documents) {
     if (sourceText) {
-      sourceText += divider + '\n';
+      sourceText += divider;
     }
 
     sourceText += document.text;