Index: src/assets/js/audio-player.js
===================================================================
--- src/assets/js/audio-player.js	(revision fa089819894c489333fe1d0f327dae1085a86987)
+++ src/assets/js/audio-player.js	(revision 1720482bc8e10937812eea5cdd213db0cc85a347)
@@ -276,4 +276,17 @@
   // Used by the site pre-seed so opening a page doesn't auto-download audio;
   // the blob is fetched lazily on the first play().
+  // Markeer de huidige track persistent (blijvende highlight zolang 'ie actief is).
+  function markPlaying(trackId) {
+    document.querySelectorAll('.pat-playing').forEach((e) => e.classList.remove('pat-playing'));
+    if (!trackId) return;
+    const el = document.getElementById('track-' + trackId);
+    if (el) el.classList.add('pat-playing');
+  }
+  // Na een htmx-navigatie is de post-DOM vervangen → highlight opnieuw zetten.
+  document.body.addEventListener('htmx:afterSettle', () => {
+    const t = queue[currentIndex];
+    if (t) markPlaying(t.id);
+  });
+
   function loadTrack(index, autoplay, metaOnly) {
     if (!queue[index]) {
@@ -300,4 +313,5 @@
     document.body.classList.add('has-audio-player');
     renderQueue();
+    markPlaying(t.id);
 
     if (metaOnly) return;