Other Ohmwerk
Octobre 14th (aka Avril 14th inverted)

Ohmwerk Octobre 14th (on a music box)

First inverted version of "Avril 14th" (Aphex Twin) by Ohmwerk.

Avril 14th piece in inverted notation, the score is flipped around the horizontal axis (in note pitch).

Inverted, not reversed.
Inverted music not audio.

ohmwerk.com
soundcloud.com/ohmwerk
soundcloud.com/murdrum
soundcloud.com/dplayx
soundcloud.com/8wrk

Octobre 14th on Youtube :
youtube.com/watch?v=L8jqzFlX-iE