Update app.py

app.py

@@ -7,7 +7,7 @@ def greet(name,rooms):
         samplerate = f.samplerate
 
 # Make a Pedalboard object, containing multiple plugins:
-    board = Pedalboard([Chorus(), Reverb(room_size=rooms])
+    board = Pedalboard([Chorus(), Reverb(room_size=rooms)])
 
 # Run the audio through this pedalboard!
     effected = board(audio, samplerate)