Update app.py

app.py

@@ -26,6 +26,8 @@ import TMIDIX
 from midi_to_colab_audio import midi_to_colab_audio
 from x_transformer_2_3_1 import TransformerWrapper, AutoregressiveWrapper, Decoder, top_p
 
+import random
+
 # -----------------------------
 # CONFIGURATION & GLOBALS
 # -----------------------------