Update app.py

app.py

@@ -10,12 +10,12 @@ def generate_tone(note, octave, duration):
     return sampling_rate, audio
 
 gr.Interface(
-    generate_tone,
-    [
+    fn = generate_tone,
+    inputs=[
         gr.inputs.Dropdown(["C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B"], type="index"),
         gr.inputs.Slider(4, 6, step=1),
         gr.inputs.Textbox(type="number", default=1, label="Duration in seconds"),
     ],
-    "audio",
+    outputs="audio",
     title="Generate a Musical Tone!"
 ).launch(share=True)