Song folders must have a metadata.json file

negromate/songs/loader.py

@@ -122,7 +122,7 @@ def load_songs(root_folder, generate=True, regenerate=False, karaoke_template_fi
     for entry in root_folder.iterdir():
         if entry.name in ['static', 'playlist', 'home', 'todo']:
             continue
-        if entry.is_dir():
+        if entry.is_dir() and (entry / 'metadata.json').exists():
             logger.info("building {}".format(entry.name))
             try:
                 song = Song(entry, root_folder)