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ISAAC ALTER is a New York-based music director, accompanist, 

arranger, and conductor.

Isaac currently performs regularly as a sub conductor and keyboardist at Frozen, Moulin Rouge, and Dear Evan Hansen on Broadway. Other Broadway credits include Wicked (Key 1 sub), King Kong (Key 1 sub), Waitress (copyist, rehearsal pianist) and Natasha, Pierre, and the Great Comet of 1812 (music assistant, rehearsal pianist). Off-Broadway and regional favorites include The Heart of Rock and Roll (associate music director), NYIT-nominated Red Emma and the Mad Monk (music director, arranger), and Classic Stage's Carmen Jones (copyist). 


Isaac holds a B.A. from Harvard University, magna cum laude in Human Developmental and Regenerative Biology, with a secondary degree field in music.

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