Update app.py

app.py

@@ -1,13 +1,13 @@
 import ast
 import shutil
 import gradio as gr
-# import numpy as np
-# from matplotlib import pyplot as plt
+import numpy as np
+from matplotlib import pyplot as plt
 from mido import Message, MidiFile, MidiTrack
 import os
 import subprocess
 from music21 import converter, note
-# from pydub import AudioSegment
+from pydub import AudioSegment
 import hexachords
 from format_conversions import Format_Converter
 import verovio