Sarah Hennies is an American composer and percussionist from Ithaca, New York. She is currently a visiting professor at Bard College. Her work often engages a variety of musical, sociopolitical, and psychological issues, including queer and trans identity, love, intimacy, and psychoacoustics. Although she primarily composes solo and chamber music works, she is also active in performance art, dance, improvisation, and film. Her groundbreaking audiovisual work Contralto (2017) explores transwoman identity through the elements of "voice feminization" therapy, with a cast of transgender women accompanied by a dense and varied musical score for string quartet and three percussionists. For this work, she was a finalist for the 2019 Queer|Art Prize. She presents her work internationally as both composer and percussionist with notable performances at MoMA PS1 (NYC), Monday Evening Concerts (Los Angeles), Le Guess Who (Utrecht), O'Art Space (Milan), Cafe Oto (London), ALICE (Copenhagen), and the Edition Festival (Stockholm).