Notes are coming in that Richard Teitelbaum has passed away at age 80. From Wikipedia:
Richard Lowe Teitelbaum (born May 19, 1939) is an American composer, keyboardist, and improvisor. A former student of Allen Forte, Mel Powell, and Luigi Nono, he is known for his live electronic music and synthesizer performances. He is a pioneer of brain-wave music. He is also involved with world music and uses Japanese, Indian, and western classical instruments and notation in both composition and improvisational settings.