Mary Duke Biddle Music Building -Dedicated on October 19, 1974, the Biddle Music Building has housed the music department since its opening. The building when first constructed featured fully equipped classroom and seminar rooms, a rehearsal hall, ensemble rooms, thirty-five soundproofed practice rooms, twenty-five offices/studios, a recording studio, electronic studio, a 32,000 volume library, two organ teaching studios, and three organ practice rooms.