For each TRACK, choose your instrument along with creativity
(temperature) and note density.
Then, hit the Generate Button, and after a few seconds a track should
have been generated.
Check the piano roll and listen to the TRACK! If you don't like it,
hit the generate button to regenerate it.
You can then generate more tracks and listen to the mixed audio!
Does it sound nice? Maybe a little robotic and lacking some depth...
Well, you can download the MIDI file and import it in your favorite DAW
to edit the instruments and add some effects!
Note: Do not try to generate several tracks simultaneously as it will
crash the app; wait for one track to be generated before generating another one.