Don Preston

Don Preston (born 1932) is an American keyboardist who grew up in Detroit and played in Frank Zappa's original Mothers of Invention from 1966 to 1974. He is known for his early work with synthesizers and recorded electronic music from 1967 onward. He has scored films and worked in jazz with Elvin Jones, Charlie Haden and Carla Bley, and co-founded the Grandmothers. Recordings include Filters, Oscillators & Envelopes (Sub Rosa).