Update app.py

app.py

@@ -1,11 +1,19 @@
 import gradio as gr
 import os
 
+os.system("midi_ddsp_download_model_weights")
+
+
 def greet(name):
     ret = "Hello " + name + "!"
     ret += '\n Current working dir: ' + os.getcwd() + '\n'
+    return ret
 
-demo = gr.Interface(fn=greet, inputs="text", outputs="text")
+demo = gr.Interface(fn=greet,
+                    gr.File(file_count="multiple", file_types=[".mid", ".midi"]),
+                    "file",
+                    examples=['ode_to_joy.mid']
+                   )
     
 if __name__ == "__main__":
     os.system("pwd")