Index: src/config/database.js
===================================================================
--- src/config/database.js	(revision 0d7acdfd541ca8374f3adc7a5f67f2ca00f4f4ef)
+++ src/config/database.js	(revision 903f10bb52d81b6011b7c71d31a4a4f454be0449)
@@ -92,4 +92,7 @@
   ensureColumn('audio_tracks', 'credit', 'TEXT');   // eigenaar/credit (copyright-houder)
   ensureColumn('audio_tracks', 'license', 'TEXT');  // licentie (bv. "CC BY 4.0", "Alle rechten voorbehouden")
+  ensureColumn('audio_tracks', 'link_spotify',    'TEXT');  // "open in"-links per track
+  ensureColumn('audio_tracks', 'link_youtube',    'TEXT');
+  ensureColumn('audio_tracks', 'link_soundcloud', 'TEXT');
 
   // Playlists (v9 feature) — first-class entity. CREATE IF NOT EXISTS is