3 files changed, 10 insertions, 0 deletions
diff --git a/src/data/things/thing.js b/src/data/things/thing.js
index b9fa60c..5ab15c0 100644
--- a/src/data/things/thing.js
+++ b/src/data/things/thing.js
@@ -148,6 +148,10 @@ export default class Thing extends CacheableObject {
     additionalFiles: () => ({
       flags: {update: true, expose: true},
       update: {validate: isAdditionalFileList},
+      expose: {
+        transform: (additionalFiles) =>
+          additionalFiles ?? [],
+      },
     }),
 
     // A reference list! Keep in mind this is for general references to wiki
diff --git a/src/data/things/track.js b/src/data/things/track.js
index 1778ed2..0751b2d 100644
--- a/src/data/things/track.js
+++ b/src/data/things/track.js
@@ -96,6 +96,8 @@ export class Track extends Thing {
     commentary: Thing.common.commentary(),
     lyrics: Thing.common.simpleString(),
     additionalFiles: Thing.common.additionalFiles(),
+    sheetMusicFiles: Thing.common.additionalFiles(),
+    midiProjectFiles: Thing.common.additionalFiles(),
 
     // Update only
 
diff --git a/src/data/yaml.js b/src/data/yaml.js
index 6350588..7cd23cf 100644
--- a/src/data/yaml.js
+++ b/src/data/yaml.js
@@ -248,6 +248,8 @@ export const processTrackDocument = makeProcessDocument(T.Track, {
     'Cover Artists': parseContributors,
 
     'Additional Files': parseAdditionalFiles,
+    'Sheet Music Files': parseAdditionalFiles,
+    'MIDI Project Files': parseAdditionalFiles,
   },
 
   propertyFieldMapping: {
@@ -264,6 +266,8 @@ export const processTrackDocument = makeProcessDocument(T.Track, {
     lyrics: 'Lyrics',
     commentary: 'Commentary',
     additionalFiles: 'Additional Files',
+    sheetMusicFiles: 'Sheet Music Files',
+    midiProjectFiles: 'MIDI Project Files',
 
     originalReleaseTrackByRef: 'Originally Released As',
     referencedTracksByRef: 'Referenced Tracks',