Update app.py

app.py

@@ -336,11 +336,11 @@ def save_midi(tokens):
         if 0 <= m < 128:
             time += m * 32
 
-        elif 589 < m < 717:
-            pitch = (m-589)
+        elif 461 < m < 589:
+            pitch = (m-461)
 
-        elif 717 < m < 845:
-            dur = (m-717) * 32
+        elif 589 < m < 717:
+            dur = (m-589) * 32
             song_f.append(['note', time, dur, 0, pitch, max(40, pitch), 0])
 
     if song_f is not None and song_f: