Rachel Devorah Trapp (b. Hartford, 1986) is an American composer, sound artist, and improvising hornist. Her works for performance and installation crystallize in sound the habits of being: the daily patterns of ineffable exchange that bind our individual lives together. Pieces by RDT have been performed by artists such as Rhymes with Opera, Fred Frith, and the Del Sol String Quartet at places such as the National Opera Center (NY), the OPENSIGNAL Festival at Brown University (RI), Røst AiR (Norway), the Musical Singularity Series at Wesleyan University (CT), the International SuperCollider Symposium at the University of Colorado at Boulder (CO), the Music for People and Thingamajigs Festival (CA), and Art in Odd Places (NC). She earned a Master's degree in composition from Mills College in 2013 and a Bachelor's degree in horn performance from the City University of New York in 2007. She is currently a Jefferson Fellow at the University of Virginia in the first year of her pursuit of a Doctoral degree in composition and computer technologies.