Update app.py

app.py

@@ -144,7 +144,7 @@ def GenerateMIDI(num_tok, idrums, iinstr):
         if 1280 <= ss1 < 2816:
             channel = (ss1 - 1280) // 128
             pitch = (ss1 - 1280) % 128
-            event = ['note', ctime, dur, channel, pitch, vel, list_of_MIDI_patches[chanel]]
+            event = ['note', ctime, dur, channel, pitch, vel, list_of_MIDI_patches[channel]]
             output[-1].append(event)
 
     midi_data = TMIDIX.score2midi(output, text_encoding)