Update app.py

app.py

@@ -90,6 +90,7 @@ def run(search_prompt, mid=None):
 
         for m in meta_data:
             mid_seq.extend(m[1][17:])
+            mid_seq_ticks = m[1][16][1]
             break
        
     elif mid is not None:
@@ -106,7 +107,7 @@ def run(search_prompt, mid=None):
 
     with open(f"output.mid", 'wb') as f:
         f.write(MIDI.score2midi(mid_seq))
-    audio = synthesis(MIDI.score2opus(mid_seq), soundfont_path)
+    audio = synthesis(MIDI.score2opus([mid_seq_ticks, [mid_seq]]), soundfont_path)
     yield mid_seq, "output.mid", (44100, audio), [create_msg("visualizer_end", None)]