This paper discusses my musical theater composition, A Mystery Play, which consists of eleven relatively static and iconographic tableaux vivants enacted on stage with orchestral accompaniment. The characters of this piece are "The Woman" (a soprano), ";The Silent Woman" (a non-singing, non-speaking role), "The Stranger" (a baritone), some children and a solo SATB vocal quartet. A Mystery Play is a work-in-progress. Three of the projected eleven tableaux are completed. The focus of A Mystery Play is the symbolic and myth-like images of the tableaux and the music accompanying these images. Loosely based on the Visitatio Sepulchri dialogue prevalent in medieval mystery plays, it also borrows from Sufi, Greco-Roman and Jungian ideas of transformation. The text consists of fragments from the opening of Augustine's Confessions, fragments from Visitatio Sepulchri and two prose poems based on dream images. This paper discusses the sources inspiring the images and the idea of transformation that forms the basis for the piece. It also includes a partial analysis of the music of tableaux 1, 2 and 3, beginning with a brief analysis of pitch material followed by a detailed discussion of Tableau 1; a brief discussion of Tableaux 2 and 3; and lastly, possible musical material for the remaining tableaux. It ends with a brief discussion of the relationship between the images and the music. The completed score for the first three tableaux are included as are also the libretto and drawings of set designs for the first three tableaux.