Mary Jane Leach is an American composer based in New York City.[1] She has been a member of the Downtown Ensemble, composer in residence at Sankt Peter, Köln, and has recordings on XI, New World Records, and Lovely Music.[2] In the late 1970s Leach composed mainly with tape, overdubbing her own playing and singing. As her music became more frequently performed she continued writing in an "overdubbing" fashion, layering parts and experimenting with the textures created by multiple voices.[3] Her compositional style is characterized by modality, imitation, and prolongation.[3] In 1995, she was awarded a grant from the Foundation for Contemporary Arts Grants to Artists Award. [4] She currently teaches music courses at Rensselaer Polytechnic Institute.