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In page Clara Rockmore:

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Rockmore made orchestral appearances in New York and Philadelphia and went on coast-to-coast tours with Paul Robeson, but it was not until 1977 that she released a commercial recording called The Art of the Theremin. The album, which was produced by Bob Moog and Shirleigh Moog, featured Rockmore's theremin playing with piano accompaniment by her sister Nadia.[citation needed] Rockmore's approach to theremin playing emphasized physical and emotional control.[1]