diff --git a/titles/mai2/base.py b/titles/mai2/base.py
index 6d14bce..6ad36d7 100644
--- a/titles/mai2/base.py
+++ b/titles/mai2/base.py
@@ -646,21 +646,27 @@ class Mai2Base:
         return {"userId": data["userId"], "length": 0, "userRegionList": []}
 
     def handle_get_user_music_api_request(self, data: Dict) -> Dict:
-        songs = self.data.score.get_best_scores(data.get("userId", 0))
+        user_id = data.get("userId", 0)        
+        next_index = data.get("nextIndex", 0)
+        max_ct = data.get("maxCount", 50)
+        upper_lim = next_index + max_ct
+        music_detail_list = []
+
+        if user_id <= 0:
+            self.logger.warn("handle_get_user_music_api_request: Could not find userid in data, or userId is 0")
+            return {}
+        
+        songs = self.data.score.get_best_scores(user_id)
         if songs is None:
+            self.logger.debug("handle_get_user_music_api_request: get_best_scores returned None!")
             return {
             "userId": data["userId"],
             "nextIndex": 0,
             "userMusicList": [],
         }
 
-        music_detail_list = []
-        next_index = data.get("nextIndex", 0)
-        max_ct = data.get("maxCount", 50)
-        upper_lim = next_index + max_ct
         num_user_songs = len(songs)
 
-
         for x in range(next_index, upper_lim):
             if num_user_songs >= x:
                 break
@@ -671,6 +677,7 @@ class Mai2Base:
             music_detail_list.append(tmp)
 
         next_index = 0 if len(music_detail_list) < max_ct or num_user_songs == upper_lim else upper_lim
+        self.logger.info(f"Send songs {next_index}-{upper_lim} ({len(music_detail_list)}) out of {num_user_songs} for user {user_id} (next idx {next_index})")
         return {
             "userId": data["userId"],
             "nextIndex": next_index,