Electronic musical instrument was designed to be a lower-cost alternative to a pipe organ for church music, musicians soon discovered that the Hammond was an excellent instrument for blues and jazz; indeed, an entire genre of music developed built around this instrument, known as the organ trio (typically Hammond organ, drums, and a third instrument, either saxophone or guitar). The first commercially manufactured synthesizer was the Novachord, built by the Hammond Organ Company from 1938 to 1942, which offered 72-note polyphony using 12 oscillators driving monostable-based divide-down circuits, basic envelope control and resonant low-pass filters. The instrument featured 163 vacuum tubes and weighed
Gene Krupa the second song, audience members leapt to their feet in appreciation. Norman Granz hired Krupa and drummer Buddy Rich for his Jazz at the Philharmonic concerts. The two drummers performed at Carnegie Hall in September 1952 and it was issued by Verve as "The Drum Battle". The two drummers faced off in a number of television broadcasts and other venues and often played similar duets with drummer Cozy Cole. Krupa and Rich recorded two studio albums together: "Krupa and Rich" (Verve, 1955) and "Burnin' Beat" (Verve, 1962). Krupa married Ethel Maguire twice: the first marriage lasted from 1934 to 1942,