1 files changed, 30 insertions, 0 deletions
diff --git a/src/data/composite/wiki-properties/commentary.js b/src/data/composite/wiki-properties/commentary.js
new file mode 100644
index 0000000..cd6b7ac
--- /dev/null
+++ b/src/data/composite/wiki-properties/commentary.js
@@ -0,0 +1,30 @@
+// 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,
+
+  steps: () => [
+    exitWithoutDependency({
+      dependency: input.updateValue({validate: isCommentary}),
+      mode: input.value('falsy'),
+      value: input.value(null),
+    }),
+
+    withParsedCommentaryEntries({
+      from: input.updateValue(),
+    }),
+
+    exposeDependency({
+      dependency: '#parsedCommentaryEntries',
+    }),
+  ],
+});