Update app.py

app.py

@@ -219,4 +219,4 @@ if __name__ == "__main__":
         output_midi = gr.File(label="output midi", file_types=[".mid"])
         run_event = run_btn.click(GenerateMIDI, [input_drums, input_instrument], [output_midi_seq, output_plot, output_midi, output_audio])
         
-        app.queue(2).launch(server_port=opt.port, share=opt.share, inbrowser=True)
+        app.queue(concurrency_count=1).launch(server_port=opt.port, share=opt.share, inbrowser=True)