Update app.py

app.py

@@ -38,7 +38,7 @@ st.sidebar.markdown(CONTACT_TEXT)
 
 def inference(audio, num_epoch):
     generator = Generator()
-    output_midi_data = generator(audio, num_epoch=int(num_epoch))
+    output_midi_data = generator(audio, num_epoch=int(num_epoch))[0]
     name = uuid.uuid4()
     output_midi_data.write(f'{name}.mid')
     fs = FluidSynth("font.sf2")