Watch the film online at: http://www.realeyz.tv/en/andrew-szava-kovats-grindstone-redux_cont3553.html - In celebration of cassette tapes and the creative spirit â the story of how 'do it yourself' music changed the recording industry. This is also a history of underground electronic music in America variously known as synthesizer music, industrial, experimental, noise, and avant-garde space rock. With music by Jeff Central, Disism, Curious Voltage, Mark. www.realeyz.tv