diff --git a/linedance-api/app/routers/sync.py b/linedance-api/app/routers/sync.py
index 6a85680f..d8295e3b 100644
--- a/linedance-api/app/routers/sync.py
+++ b/linedance-api/app/routers/sync.py
@@ -155,58 +155,47 @@ def push(
 
     # ── Sang-dans tags (brugerens egne) ───────────────────────────────────────
     from app.models import SongDance, SongAltDance
-    # Slet eksisterende song_dances for disse sange og genindsæt
-    affected_song_ids = set(
-        song_id_map[sd.song_local_id]
-        for sd in payload.song_dances
-        if sd.song_local_id in song_id_map
-    )
-    if affected_song_ids:
-        db.query(SongDance).filter(
-            SongDance.song_id.in_(affected_song_ids)
-        ).delete(synchronize_session=False)
-        db.flush()
+    # ── Sang-dans tags ────────────────────────────────────────────────────────
+    from app.models import SongDance, SongAltDance
+    import sqlalchemy as _sa
 
-    with db.no_autoflush:
-        for sd in payload.song_dances:
-            song_id = song_id_map.get(sd.song_local_id)
-            if not song_id:
-                continue
-            level_id = level_map.get(sd.level_name.lower()) if sd.level_name else None
-            key = f"{sd.dance_name.lower()}|{level_id}"
-            dance_id = dance_id_map.get(key)
-            if not dance_id:
-                continue
-            db.add(SongDance(
-                song_id=song_id, dance_id=dance_id,
-                dance_order=sd.dance_order,
-            ))
+    for sd in payload.song_dances:
+        song_id = song_id_map.get(sd.song_local_id)
+        if not song_id:
+            continue
+        level_id = level_map.get(sd.level_name.lower()) if sd.level_name else None
+        key = f"{sd.dance_name.lower()}|{level_id}"
+        dance_id = dance_id_map.get(key)
+        if not dance_id:
+            continue
+        db.execute(_sa.text(
+            "INSERT IGNORE INTO song_dances (id, song_id, dance_id, dance_order) "
+            "VALUES (:id, :song_id, :dance_id, :dance_order)"
+        ), {
+            "id":         str(__import__("uuid").uuid4()),
+            "song_id":    song_id,
+            "dance_id":   dance_id,
+            "dance_order": sd.dance_order,
+        })
 
-    affected_alt_ids = set(
-        song_id_map[sa.song_local_id]
-        for sa in payload.song_alts
-        if sa.song_local_id in song_id_map
-    )
-    if affected_alt_ids:
-        db.query(SongAltDance).filter(
-            SongAltDance.song_id.in_(affected_alt_ids)
-        ).delete(synchronize_session=False)
-        db.flush()
-
-    with db.no_autoflush:
-        for sa in payload.song_alts:
-            song_id = song_id_map.get(sa.song_local_id)
-            if not song_id:
-                continue
-            level_id = level_map.get(sa.level_name.lower()) if sa.level_name else None
-            key = f"{sa.dance_name.lower()}|{level_id}"
-            dance_id = dance_id_map.get(key)
-            if not dance_id:
-                continue
-            db.add(SongAltDance(
-                song_id=song_id, dance_id=dance_id,
-                note=sa.note,
-            ))
+    for sa in payload.song_alts:
+        song_id = song_id_map.get(sa.song_local_id)
+        if not song_id:
+            continue
+        level_id = level_map.get(sa.level_name.lower()) if sa.level_name else None
+        key = f"{sa.dance_name.lower()}|{level_id}"
+        dance_id = dance_id_map.get(key)
+        if not dance_id:
+            continue
+        db.execute(_sa.text(
+            "INSERT IGNORE INTO song_alt_dances (id, song_id, dance_id, note) "
+            "VALUES (:id, :song_id, :dance_id, :note)"
+        ), {
+            "id":      str(__import__("uuid").uuid4()),
+            "song_id": song_id,
+            "dance_id": dance_id,
+            "note":    sa.note or "",
+        })
 
     # ── Playlister ────────────────────────────────────────────────────────────
     playlist_id_map = {}