Changed `map_to_wav` name to `notes_to_midi`

audio.py

@@ -108,7 +108,7 @@ def display_audio(pm: pretty_midi.PrettyMIDI, seconds=-1) -> display.Audio:
   return display_obj
     
 
-def map_to_wav(song_map: pd.DataFrame, out_file: str, velocity: int=50) -> pretty_midi.PrettyMIDI:
+def notes_to_midi(song_map: pd.DataFrame, out_file: str, velocity: int=50) -> pretty_midi.PrettyMIDI:
   """
   Convert "song map" to midi file (reverse process with respect to 
   midi_to_notes) and (optionally) save it, generating a PrettyMidi object in the process.