Update app.py

app.py

@@ -94,7 +94,7 @@ def render_midi(input_midi, render_type, soundfont_bank, render_sample_rate, mel
             e[6] = max(0, min(127, melody_patch))
 
             if e[4] < 60:
-                e[4] = (e[4] % 12) + 72
+                e[4] = (e[4] % 12) + 60
 
     elif render_type == "Transform":
         output_score = copy.deepcopy(escore)