Kirke Mechem (b. 1925), American composer, has a musical output which includes a variety of genres, the most prolific being choral music. This document examines selected choral works by Mechem that are set to the poetry of Sara Teasdale (b. 1884, d. 1933). Included are biographical sketches of Mechem and Teasdale. Selected choral works examined include Christmas Carol (1969) SATB and guitar, The Winds of May, five movement choral cycle (1965) SATB, Birds at Dusk, from the choral cycle Winging Wildly (1998) SATB, and Barter (1995) SA, trumpet, piano 4-hands. Analysis of the poetry involved as well as musical attributes and compositional techniques, including meter, form, harmonic structures, wordpainting, rhythmic treatment and melodic characteristics are included in the discussion.

George Crumb (b.1929)'s Makrokosmos is recognized as one of the masterpieces of twentieth century piano writing. Inexplicably, volume four of Makrokosmos, Crumb's only four-hand piano piece, is rarely studied by Crumb scholars. According to Crumb's program notes, his Makrokosmos is meant to be a hybrid of piano and orchestral sound. Crumb devised a list of signs and abbreviated letters to explain his specific instructions to the performers. The pianists who plan to perform Makrokosmos need to study Crumb's notations carefully in order to faithfully realize the composer's intentions. This dissertation examines the composer's treatment of four hands at the piano. In addition, a performer's analysis and practical "translation" of these techniques is provided, in the hopes of rendering this amazing piece more accessible to pianists in search of new and wonderful repertoire for piano four hands. It is also hoped that future composers will be inspired by Crumb's innovations and imaginative ideas.

Jake Heggie, American art song and opera composer, began his association with Sister Helen Prejean, CSJ when he composed Dead Man Walking, an operatic adaptation of her memoirs. Though from two very different backgrounds, the two developed a deep friendship and spiritual bond that provided the impetus for further compositions dealing with spirituality. Heggie adapted Prejean's meditations as a text for his song cycle The Deepest Desire in 2002, producing what he considers to be his finest work to date. Using The Deepest Desire as a gateway, this paper explores the social and cultural aspects of their association, revealing their personal perspectives on their relationship, collaborations, and shared sense of spirituality. Chapters include the biographies and spiritual philosophies of both Heggie and Prejean, Heggie's compositional style, Dead Man Walking, a performance analysis of The Deepest Desire, and the continuing influence of the relationship between Heggie and Prejean on Heggie's work. The appendix includes transcriptions of personal interviews with both individuals, Prejean's original meditation texts, correspondence with Heggie, Prejean, and Joyce DiDonato, and performance notes for The Deepest Desire derived from a musical coaching with the composer.