David Reiffel is pleased to make his URT debut with A Disappearing Number. His music and sound designs are widely heard on Boston stages including Stoneham, New Rep, ASP, Speakeasy, Apollinaire, The Boston Conservatory, Brandeis, Zeitgeist, Titanic, and Company One, and further afield at the Oregon Shakespeare Festival and Chicago’s Court Theatre. His musical The Rag Doll (book by Silvia Graziano) premiered at Blue Spruce (IRNE Nominee, Best New Play), and he wrote lyrics for Cupcake (book: Bradley Seeman, music: Michael Wartofsky), produced in 2012 at Club Café. His musical Glory is presently in development at the NOMTI Advanced Writers Lab. He wrote scores and designed sound for five years on the road as a founding member and resident composer with the nationally-acclaimed Cornerstone Theater Company.