Oh I love this. And it'd be really cool to see that.

The current output isn't a particular format. It's purely text output that looks like this.

1:01 -----|A1--B1|----A3--A4|

1:03 -----|A1--B1|--A3--A4|---B2|

If you had a way to copy and paste that as a string of notes and visualize in a loop or some-how that might work. You'd have to figure out how long a note was pressed etc, so it may require some extra logic.