As part of the 1985 expansion of the Moore Building in Ann Arbor, University of Michigan School of Music, Theatre & Dance added this small recital and rehearsal hall and its C. B. Fisk organ, modeled after the instruments of the Gottfried Silbermann (1683-1753), whose organs were a favorite of J.S. Bach. It is now known as the Marilyn Mason Organ, named for the renowned organ professor who led the Department of Organ for 66 years.