Turn up the volume and prepare to be hypnotized! Click on the black arrow to switch between "ascending" and "descending" mode. Warning: if you're like me, you'll find this amusing. But if not, there's a chance you'll find it really annoying or even headache-inducing. In that case, just turn it off and go listen to your favorite music! :-)
Thanks to Hardmath123 for the original project Shepard. In the original project, it would eventually stop working. I fixed that. Wow, this was loved by @scmb1.
