Update app.py

app.py

@@ -372,6 +372,7 @@ if __name__ == "__main__":
         )
 
         gr.Markdown("## Upload any MIDI to classify")
+        gr.Markdown("### Please note that the MIDI file must have at least 340 notes for this demo to work")
         
         input_midi = gr.File(label="Input MIDI", file_types=[".midi", ".mid", ".kar"])
         input_sampling_resolution = gr.Slider(1, 5, value=2, step=1, label="Classification sampling resolution")