Index: src/services/music/index.js
===================================================================
--- src/services/music/index.js	(revision aed0092c4492bca99e1c9a5c82332c1d08fe1bee)
+++ src/services/music/index.js	(revision 8455dac40de53d0edba192fe5314007b8ac8dc0c)
@@ -18,5 +18,5 @@
 
 // m.size hoort erbij voor de RSS-enclosure: die eist een lengte in bytes.
-const TRACK_KOLOMMEN = `t.id, t.title, t.artist, t.duration, t.cover_url, t.created_at,
+export const TRACK_KOLOMMEN = `t.id, t.title, t.artist, t.duration, t.cover_url, t.created_at,
      t.position, t.license,
      m.filename, m.storage_path, m.mime_type, m.size`;