Update app.py

app.py

@@ -214,7 +214,7 @@ if __name__ == "__main__":
         run_btn = gr.Button("generate", variant="primary")
 
         output_midi_seq = gr.Variable()
-        output_audio = gr.Audio(label="output audio", format="mp3", elem_id="midi_audio")
+        output_audio = gr.Audio(label="output audio", format="mp3", elem_id="midi_audio", show_download_button=True)
         output_plot = gr.Plot(label="output plot")
         output_midi = gr.File(label="output midi", file_types=[".mid"])
         run_event = run_btn.click(GenerateMIDI, [input_num_tokens, input_drums, input_instrument], [output_midi_seq, output_plot, output_midi, output_audio])