Add application file

app.py

@@ -13,12 +13,12 @@ description = "Gradio demo for MIDI-DDSP: Detailed Control of Musical Performanc
 
 article = "<p style='text-align: center'><a href='https://arxiv.org/abs/2112.09312' target='_blank'>MIDI-DDSP: Detailed Control of Musical Performance via Hierarchical Modeling</a> | <a href='https://github.com/magenta/midi-ddsp' target='_blank'>Github Repo</a></p>"
 
-examples=['input.mid']
+examples=[['input.mid']]
 
 gr.Interface(
     inference,
     gr.inputs.File(type="file", label="Input"),
-    gr.outputs.Audio(type="file", label="Output"),
+    [gr.outputs.Audio(type="file", label="Output")],
     title=title,
     description=description,
     article=article,