The game was made in TIC-80, so I used the music tool that it offers and it was one of the latest things I did, literally a few hours before submitting.

So I thought it would be cool to produce that music the proper way, so I fired off Reaper, got my AKAI midi controller and did this:

https://soundcloud.com/bruno-croci/clone-stacking

Let me know if you like it!

Also, rate the game if you haven't yet: https://ldjam.com/events/ludum-dare/55/clone-stacking