Update app.py

app.py

@@ -102,9 +102,11 @@ def run(search_prompt, mid=None):
             init_msgs.append(create_msg("visualizer_append", event))
     yield mid_seq, None, None, init_msgs
 
+    j = 0
     for i in range(len(mid_seq)-1):
         if mid_seq[i][0] == 'note':
-            yield mid_seq, None, None, [create_msg("visualizer_append", mid_seq[i]), create_msg("progress", [i + 1, len(mid_seq)])]
+            yield mid_seq, None, None, [create_msg("visualizer_append", mid_seq[i]), create_msg("progress", [j + 1, len(mid_seq)])]
+            j += 1
 
     with open(f"output.mid", 'wb') as f:
         f.write(MIDI.score2midi([mid_seq_ticks, mid_seq]))