Add proper docstring to analyze_music_file

setup.py

@@ -105,7 +105,16 @@ def _validate_limit(limit: int):
 
 
 def analyze_music_file(audio_file: str, limit: int = 10) -> tuple[str, float, list[dict]]:
-    """Analyze music file by extracting chords and computing embeddings"""
+    """
+    Analyze a music audio file by extracting its chord sequence and computing an originality score
+    along with a list of similar songs from the system data store.
+
+    Args:
+        audio_file: Path to an audio file (e.g. MP3, WAV, FLAC, MIDI).
+        limit: Maximum number of similar songs to return. Defaults to 10.
+    Returns:
+        tuple[str, float, list[dict]]: File name, originality score and list of dictionaries, each representing a similar song. You may infer that some items in the list are essentially the same song - if so don't repeat them to the user. Also some songs are more famous than others in the results - if you come across a famous one, then highlight it. Returns None results if there was error, likely due to wrong chord format.
+    """
     _validate_limit(limit)
     if audio_file is None:
         return None, None, None