In 1964 he founded Mainstream Records, where he both reissued his old material and produced new recordings from Shelly Manne, Dizzy Gillespie, Roy Haynes, Buddy Terry, and Pete Yellin.
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Eileen Barton had a massive hit with "If I Knew You Were Coming I'd've Baked a Cake." Working as A&R men were Lee Magid, Bob Shad, Jesse Stone and Herb Abramson.
The group recorded one album and two singles for Jazz Producer Bob Shad's Mainstream label.