Thesis explores the vocal music of the Comédies-Ballets written by Jean Baptiste Lully and Jean Baptiste Molière. Susan Kaye Schafer provides historical context to the collaboration between Lully and Molière and investigates the content of their work.

Francis Poulenc's one-character opera La Voix humaine (1958), a setting of the homonymous play by Jean Cocteau, explores the psychological complexities of an unnamed woman as she experiences the end of a romantic relationship. During the forty-minute work, she sings in a declamatory manner into a telephone, which serves as a sign of the unrevealed man at the other end. Poulenc uses musical motives to underscore the woman's changing emotional states as she recalls her past relationship. The musical dramaturgy in this work resignifies Debussy's impressionist symbolism by collapsing devices used in Pelléas et Mélisande in a language that shifts between octatonicism, chromaticism, harmonic and melodic whole tone passages, and diatonicism. This late work recontextualizes elements in Poulenc's Dialogues des Carmélites (1953-56), and the end of the opera provides a theme for his Sonate pour Clarinet et Piano(1962), as Poulenc reflects on his youthful encounters with Cocteau, Erik Satie, and Les Six.

The tragedie en musique of Quinault and Lully was a highly successful new genre, representative of contemporary Parisian life. However, it is still largely viewed in the negative terms of its detractors, the proponents of classical tragedy. The purpose of this study is to redefine the tragedie en musique in terms of seventeenth-century modernism. An examination of the society and poetry of the contemporary gallant world provides the historical framework for an analysis of both the libretto and music of Quinault and Lully's Atys (1676). This study attempts to bridge the historical and cultural distances that until now have hindered accessibility to this major new genre in seventeenth-century literature and music.