Jonathan Glasier
Jonathan Glasier (born March 25th, 1945) is an American musical pioneer, composer and improviser. He founded Interval, a journal of music research and development, and the Interval Foundation, a non-profit organization to promote microtonal music and new instruments. He was the co-owner, with his wife Elizabeth, of the Sonic Arts Gallery, a music studio and antique store, and headquarters of Sonic Arts Institute.