diff --git a/music_kraken/objects/song.py b/music_kraken/objects/song.py
index 759071c..9a068bf 100644
--- a/music_kraken/objects/song.py
+++ b/music_kraken/objects/song.py
@@ -86,11 +86,6 @@ class Song(Base):
     TITEL = "title"
 
     def __init_collections__(self) -> None:
-        """
-        self.album_collection.contain_given_in_attribute = {
-            "artist_collection": self.main_artist_collection,
-        }
-        """
         self.album_collection.sync_on_append = {
             "artist_collection": self.main_artist_collection,
         }
@@ -347,7 +342,6 @@ class Album(Base):
                 tracksort_map[i] = existing_list.pop(0)
                 tracksort_map[i].tracksort = i
 
-
     def compile(self, merge_into: bool = False):
         """
         compiles the recursive structures,