Update app.py

app.py

@@ -142,7 +142,7 @@ if __name__ == "__main__":
         gr.Markdown("# Search results")
 
         output_midi_seq = gr.Textbox(label="Found MIDI search title")
-        output_audio = gr.Audio(label="Output MIDI search sample audio", format="mp3", elem_id="midi_audio")
+        output_audio = gr.Audio(label="Output MIDI search sample audio", format="wav", elem_id="midi_audio")
         output_plot = gr.Plot(label="Output MIDI search sample plot")
         output_midi = gr.File(label="Output MIDI search sample MIDI", file_types=[".mid"])