Zvi Keren (Hebrew: צבי קרן; born Howard Ralph Kirshenbaum on August 18, 1917, died October 27, 2008) was a New York-born Israeli pianist, musicologist and composer. Upon his death was the last living pupil who was personally authorized by Joseph Schillinger. Considered to be among the pioneers of jazz playing in Israel, and the pioneer in an academic approach to jazz education in Israel, where he settled in 1951. Played an important role in the Israeli music scene as a composer, arranger and educator for generations of Israeli musicians.
Keren was born Howard Ralph Kirshenbaum in 1917 in New York City, U.S.A. He was the only son of Charles Kirshenbaum (born 1889 in Poland. Came to U.S.A. 1909. Died in NYC, 1958) and Sara Samalman (born in 1891 in Poland. Came to U.S.A. 1909. Died in Israel, 1981). He spent his childhood in New York city as well as in his parents' holiday home at Atlantic Beach, New York. His mother was an amateur "classical" pianist, and therefore she was his first music teacher. Having graduated from high-school at the age of 16, he took up studies at New York University, where he received his B.Sc in Chemistry in 1937.
Zvi Keren started to learn piano at the age of 7. In high-school he started to play popular songs. A record of Fats Waller and his rhythm attracted him to jazz, and he decided to make music his profession. He resumed serious piano study (1935–36) with Nadia Reisenberg (Teddy Wilson's teacher) and Paolo Gallico, and studied composition and theory (1939–43) with Joseph Schillinger, who authorized him personally to teach his system. Among his favorite pianists: Billy Kyle, AI Haig, André Previn and Bob James. During the 1940s Keren was professionally known as Howard Kirn. He conducted much musical activity throughout the US, and served as a pianist and arranger with the bands of Reggie Childs and Ray Kinney; as an accompanist and coach of singers in both jazz and popular music; as an arranger for bands, night-club acts and singers; as a teacher of arranging and composition in schools and privately; as a teacher of piano technique; as a pianist in New York night-clubs and hotels; as a Pianist for the television station WPIX, New York City; as a Conductor-pianist for U.S.O. (United Service Organizations) during World War II - on which occasion Keren extensively toured continental US and Alaska playing with bands accompanying well known singers. In 1946 Keren received his M.A. in composition from Columbia University. In those years he also studied musicology with Curt Sachs, Paul Henry Lang and Gustave Reese.