Add examples and pin the requirements

app.py

@@ -83,6 +83,15 @@ with block:
                 out = gr.Audio(label="Output")
                 midi_out = gr.File(label="Download Midi")
                 btn.click(inference, inputs=[file_up, composer], outputs=[out, midi_out])
+        gr.Examples([
+            ["./examples/BornThisWay.mp3", "composer1"],
+            ["./examples/Sk8erBoi.mp3", "composer2"]
+        ],
+            fn=inference,
+            inputs=[file_up, composer],
+            outputs=[out, midi_out],
+            cache_examples=True
+        )
         gr.HTML(
             """
         <div class="footer">

requirements.txt

@@ -1,10 +1,10 @@
 pretty-midi==0.2.9
 omegaconf==2.1.1
 transformers==4.16.1 
-pytorch-lightning 
+pytorch-lightning==1.8.3
 essentia==2.1b6.dev609 
 note-seq==0.0.3 
 pyFluidSynth==1.3.0
 --extra-index-url https://download.pytorch.org/whl/cpu
-torch
-torchaudio
+torch==1.13.1
+torchaudio==0.13.1