Bloch studied with Simeon Bellison, a notable clarinetist for the New York Philharmonic. As recounted by Dorothy Lamb Crawford in her 2009 book "A Windfall of Musicians:
Hitler's Émigrés and Exiles in Southern California," Bloch was hired at the age of 21 by then music director and recent Jewish emigre Otto Klemperer just before the onset of World War II.[2]
As recounted in the April 21, 1956 Los Angeles Times article "Spectators Stir Uproar at Red Probe," Bloch was forced to testify before the House Un-American Activities Committee (HUAC) for his and his wife's (artist Frances Bloch-Heifetz) progressive activities in Southern California after World War II. Evoking the 1st and 5th Amendments, he refused to answer any questions regarding his membership in the Communist Party, instead telling the committee that he "abhorred violence."[4] His passport was taken and he was refused travel for the Philharmonic's Asian tour that same year.
Bloch lived and taught in his home and studio in the Franklin Hills neighborhood of Los Feliz for over 50 years. He also taught clarinet at Pomona College and Cal State Fullerton and wrote several books on symphonic repertoire for clarinet.[5] Until his death at the age of 95 in 2009 he was active in progressive and leftist political causes, an active clarinet teacher, and member of the Los Feliz Woodwind Ensemble along with famed member of Frank Zappa and the Mothers of Invention, Bunk Gardner.
Family
Kalman Bloch is related through his wife Frances (died 2000) to violinist Jascha Heifetz.
Kalman's nephew, Lenny Heifetz, is a solo pianist in Central California. As of early 2024, Lenny has performed for nearly 6,000 concerts and events, including 600 weddings. Lenny's father, Emanuel Heifetz, noted violinist and educator at Cal Poly San Luis Obispo, was Frances Bloch's brother.