Mary Feinsinger has music directed many shows in New York and regional theatres. She has won many awards for her compositions—including a 2009 Jackie White Memorial Award, and a 2007 National Children's Theatre Competition Award. As co-founder, vocalist and keyboard artist of the West End Klezmorim, she performed at Carnegie Hall, The White House, Lincoln Center, Symphony Space and St. Peter's Jazz Church. The New York Times called her "the world's greatest Yiddish scat singer." A composer/lyricist in the BMI Lehman Engel Advanced Musical Theatre Workshop, she has had productions of her musical Understood Betsy all over the country.
Born in New York City, she is a graduate of Barnard College, and has a Master's Degree in voice from The Juilliard School. A member of the Extension Division voice faculty at the Mannes College of Music in New York, she was for many years on the piano-accompanying staff at Juilliard.
On the board of directors of the American Society for Jewish Music, she serves as cantor for the Rossmoor Jewish Congregation near Princeton.
For Transcontinental Music, she produced, arranged and music directed Kol Dodi, arranged and produced Songs from a Passover Haggadah, and was editor, composer and music director for Shirei T'shuvah.