Like this guy https://www.youtube.com/watch?v=nM2ZcgMqhQc
i dont think you do, my guess is the song is made out of samples and the video is edited to look like its playing the percussion
I think he got the BPM of the track he made from the natural timing of the printer
Thanks for the link. These two tracks sound really interesting:
http://www.qotile.net/audio/printer2.mp3
http://www.qotile.net/audio/printer3.mp3
very cool, seems complicated to do.