sentences:  After a period in the army in 1952, he moved to Los Angeles in the mid-1950s, and started to put on concerts with folk singers such as Pete Seeger and Odetta.He began running coffee bars and folk clubs, such as the Unicorn and Cosmo Alley, during the late 1950s and early 1960s.He began acting as manager for many artists, with his eventual roster including George Duke, Alice Cooper, Tom Waits, Tim Buckley, Lenny Bruce, and Linda Ronstadt.