Update app.py

app.py

@@ -12,8 +12,7 @@ def generate_tone(note, octave, duration):
     audio = (20000 * np.sin(audio * (2 * np.pi * frequency))).astype(np.int16)
     return sr, audio
 
-
-    demo = gr.Interface(
+demo = gr.Interface(
     generate_tone,
     [
         gr.Dropdown(notes, type="index"),
@@ -22,5 +21,8 @@ def generate_tone(note, octave, duration):
     ],
     "audio",
 )
+if __name__ == "__main__":
+    demo.launch()
+    
 while True:
     demo.launch()