Gijs Geikes has been hard at work since we last saw his latest bizarre Walkman Tape Player / Game Boy Sequencer. A new model sync with the Little Sound Dj cartridge: plug in a Game Boy, and other goodies (like a Walkman tape player and Stylophone keyboard), and you can create wild, screaming patterns like this. (A must-listen, experimental punk/hip-hop chiptune creation.)

Gijs has schematics up, so adventurous makers, you can make your own. Or you can just go buy one of those nifty Stylphones.

SEQ05 Pictures, Sounds, Schematics [Gieskes.nl Instruments]

Updated: That link exceeded its bandwidth restrictions, but you can hear the sounds via a new link! (Thanks, Gijs!)
Related:
Gameboy Music with LSDJ: Workshops, Tips, Photos, MP3s