Update app.py

app.py

@@ -253,7 +253,7 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
             starter_btn1 = gr.Button("Starter 1")
             starter_btn2 = gr.Button("Starter 2")
             starter_btn3 = gr.Button("Starter 3")
-            starter_buttons = [starter_btn1, starter_btn2, starter_btn3, starter_btn4]
+            starter_buttons = [starter_btn1, starter_btn2, starter_btn3]
 
             # Simplified update function
             def update_starter_buttons(selected_genre):