diff --git a/development/__init__.py b/development/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/development/objects_collection.py b/development/objects_collection.py
new file mode 100644
index 0000000..170edb0
--- /dev/null
+++ b/development/objects_collection.py
@@ -0,0 +1,26 @@
+import music_kraken
+from music_kraken.objects import Song, Album, Artist, Collection
+
+if __name__ == "__main__":
+    artist: Artist = Artist(
+        name="artist",
+        main_album_list=[
+            Album(
+                title="album",
+                song_list=[
+                    Song(
+                        title="song",
+                        album_list=[
+                            Album(title="album", albumsort=123),
+                        ],
+                    ),
+                ]
+            ),
+            Album(title="album", barcode="1234567890123"),
+        ]
+    )
+
+    print(artist.main_album_collection[0].barcode)
+    print(artist.main_album_collection[0].albumsort)
+
+    print(artist.main_album_collection._indexed_values)
\ No newline at end of file
diff --git a/music_kraken/objects/parents.py b/music_kraken/objects/parents.py
index 80bd237..689c7cc 100644
--- a/music_kraken/objects/parents.py
+++ b/music_kraken/objects/parents.py
@@ -177,6 +177,8 @@ class OuterProxy:
             _ = "debug"
             return
 
+        print(__other)
+
         self._inner.__merge__(__other._inner, override=override)
         __other._inner = self._inner
 
diff --git a/music_kraken/objects/song.py b/music_kraken/objects/song.py
index c9c8c96..93bd9a2 100644
--- a/music_kraken/objects/song.py
+++ b/music_kraken/objects/song.py
@@ -119,7 +119,7 @@ class Song(Base):
     def indexing_values(self) -> List[Tuple[str, object]]:
         return [
             ('id', self.id),
-            ('title', self.unified_title),
+            ('title', unify(self.unified_title)),
             ('isrc', self.isrc),
             *[('url', source.url) for source in self.source_collection]
         ]
@@ -265,7 +265,7 @@ class Album(Base):
     def indexing_values(self) -> List[Tuple[str, object]]:
         return [
             ('id', self.id),
-            ('title', self.unified_title),
+            ('title', unify(self.title)),
             ('barcode', self.barcode),
             *[('url', source.url) for source in self.source_collection]
         ]
@@ -530,7 +530,7 @@ class Artist(Base):
     def indexing_values(self) -> List[Tuple[str, object]]:
         return [
             ('id', self.id),
-            ('name', self.unified_name),
+            ('name', unify(self.name)),
             *[('url', source.url) for source in self.source_collection],
             *[('contact', contact.value) for contact in self.contact_collection]
         ]
@@ -643,7 +643,7 @@ class Label(Base):
     def indexing_values(self) -> List[Tuple[str, object]]:
         return [
             ('id', self.id),
-            ('name', self.unified_name),
+            ('name', unify(self.name)),
             *[('url', source.url) for source in self.source_collection]
         ]
 
diff --git a/music_kraken/utils/string_processing.py b/music_kraken/utils/string_processing.py
index f499f9c..570d18e 100644
--- a/music_kraken/utils/string_processing.py
+++ b/music_kraken/utils/string_processing.py
@@ -16,9 +16,12 @@ def unify(string: str) -> str:
     """
     returns a unified str, to make comparisons easy.
     a unified string has the following attributes:
-     - is lowercase
+    - is lowercase
     """
 
+    if string is None:
+        return None
+
     try:
         string = translit(string, reversed=True)
     except LanguageDetectionError: