Isidore Cohen was an American violinist and teacher born on December 16, 1922 (Heifetz was 21 years old.) He never made a living as a virtuoso concert violinist but had an outstanding career as a chamber music player. He began studying violin at age 6. After graduating from the High School of Music and Art (New York), he attended Brooklyn College until World War Two caught up with him. After the war, he enrolled at Juilliard (at age 24) and studied with Ivan Galamian for a while. From 1952, he played second violin in Alexander Schneider's quartet for about six years then, in the Juilliard Quartet for about ten years. Cohen taught at Juilliard from 1958 to 1966. He also later taught at the Curtis Institute, Princeton University, and the Manhattan School of Music. In 1968, he joined the Beaux Arts Trio and stayed for twenty three years. He recorded extensively with the trio. YouTube has several videos of their playing. (Menahem Pressler, the trio's pianist-founder was also born on December 16, but one year after Cohen. He currently teaches at Indiana University.) Cohen died on June 23, 2005, at age 82.