The amazing Robert Fripp:
Best known for his work with King Crimson, Robert Fripp is one of the guitarists who revolutionized guitar playing in the late '60s/early '70s. He's one of those guys always attempting to push limits with what can be done with sound and technology. In the above video he's using a tape delay technique he called "Frippertronics." While this doesn't sound at all odd to our ears now, at the time what he was doing was unheard of. Now days he just uses digital delay to achieve the same effects. Lately he's done the boot music for Windows OS.