Allen made his composer debut at the Metropolitan Museum of Art, and has been seen and heard at Carnegie Hall, Geffen Hall, Symphony Space, The Beacon, On and Off-Broadway, (le) poison rouge, PBS, film, TV, etc. His shows include Folk Wandering; the shards of an honor code junkie; Boston|Nebraska; HOCKET; Kelley [1955].
Allen is also the traveling music director for famed drag queen Marti Gould Cummings. Together their album, A Very Marti Holiday, raises funds for the Ali Forney Center, as well as being featured on the record-breaking television show Shade: Queens of NYC.