sentences:  Along with electronics whiz Jan Panis, (Karlheinz Stockhausen's tech-man) Gabriel built an apparatus which converted beams of light coming up off the floor into a MIDI control device and the 20-year-old Gabriel dressed in black, wearing white gloves performed his real-time beat-trigger device in the clubs of Amsterdam.Josh attended the Institute of Sonology in the Netherlands and earned his degree from California Institute of the Arts in Los Angeles.He founded the music creation tool Mixman in the 1990s, which was the first program to make music using loops of digital audio.