C60 by Modelbau

Instructions for use
1. Download the music
2. Pick an old c60 cassette, don't erase what's on it, you know, Phil Collins or Rick Wakeman
3. Record the download onto the cassette
4. Print the PDF and cut and fold along the lines
5. Enjoy!

Modelbau is Frans de Waard. Started out in 2012, operating small electronics, shortwave radio, iPad synths, Walkman and whatever else. More or less complete list of works here
https://www.discogs.com/artist/3846022-Modelbau