Update app.py

app.py

@@ -302,33 +302,30 @@ if __name__ == "__main__":
         )
         
         gr.Markdown("## Upload your MIDI or select a sample example below")
-        
-        gr.Markdown("## Upload source MIDI")
-        
         gr.Markdown("### For best results upload only monophonic melody MIDIs")
         
         input_src_midi = gr.File(label="Source MIDI", file_types=[".midi", ".mid", ".kar"])
         
         gr.Markdown("## Select harmonization options")
 
-        source_melody_transpose_value = gr.Slider(-6, 6, value=0, step=1, label="Source melody transpose value")
-        harmonizer_melody_chunk_size = gr.Slider(4, 16, value=8, step=2, label="Hamonizer melody chunk size")
-        harmonizer_max_matches_count = gr.Slider(-1, 20, value=-1, step=1, label="Harmonizer max matches count")
+        source_melody_transpose_value = gr.Slider(-6, 6, value=0, step=1, label="Source melody transpose value", info="You can transpose source melody by specified number of semitones if the original melody key does not harmonize well")
+        harmonizer_melody_chunk_size = gr.Slider(4, 16, value=8, step=2, label="Hamonizer melody chunk size", info="Larger chunk sizes result in better harmonization at the cost of speed and harminzation length")
+        harmonizer_max_matches_count = gr.Slider(-1, 20, value=-1, step=1, label="Harmonizer max matches count", info="Maximum number of harmonized chords per melody note to collect and to select from")
        
         melody_MIDI_patch_number = gr.Slider(0, 127, value=40, step=1, label="Source melody MIDI patch number")
         harmonized_accompaniment_MIDI_patch_number = gr.Slider(0, 127, value=0, step=1, label="Harmonized accompaniment MIDI patch number")
-        base_MIDI_patch_number = gr.Slider(0, 127, value=35, step=1, label="Base MIDI patch number")
+        base_MIDI_patch_number = gr.Slider(-1, 127, value=35, step=1, label="Base MIDI patch number")
 
         run_btn = gr.Button("harmonize melody", variant="primary")
 
         gr.Markdown("## Harmonization results")
+
+        output_summary = gr.Textbox(label="Melody harmonization summary")
         
         output_audio = gr.Audio(label="Output MIDI audio", format="mp3", elem_id="midi_audio")
         output_plot = gr.Plot(label="Output MIDI score plot")
         output_midi = gr.File(label="Output MIDI file", file_types=[".mid"])
 
-        output_summary = gr.Textbox(label="Melody harmonization summary")
-
         run_event = run_btn.click(Harmonize_Melody, 
                                                   [input_src_midi,
                                                     source_melody_transpose_value,