This dissertation investigates how W. A. Mozart applies the concept of key characteristics—the affective properties of each tonality—as discussed by three of his contemporaries, Johann Mattheson, C.F.D. Schubart and G.J. Vogler, to four soubrette and four prima donna characters from four of his late Italian operas: La Contessa and Susanna in Le nozze di Figaro; Donna Anna and Zerlina in Don Giovanni; Fiordiligi and Despina in Così fan tutte; Vitellia and Servilia in La clemenza di Tito. The analytical method of this dissertation provides a hermeneutical tool to search for meanings in Mozart's music. The application compares the libretto text and its corresponding tonal center with the description of key characteristics on a micro level, to reveal significant dramatic and practical implications from Mozart's key usage in his operas.

This anthology of late 19th- and early 20th-century Czech opera arias for soprano focuses on works that lack existing scholarship, bridging the language gap through translations and pronunciation materials for English-speaking singers. Its 24 arias supplement the works of Smetana, Dvořák, and Janáček with those of contemporaneous composers Karel Bendl, Zdeněk Fibich, Josef Bohuslav Foerster, Karel Kovařovic, Vítězslav Novák, and Otakar Ostrčil. Its musicological scope provides vignettes of the musical-cultural landscape of Czech opera around the turn of the 20th century, the transformation of Czech declamation during that period, and the language knowledge needed to sing the works thereof. Chapter 2 elucidates the methodology used in the anthology's phonetic transcriptions and discusses the unique articulatory demands of singing in Czech. Chapter 3 grounds contemporaneous discussion of Czech declamation as late 19th- and early 20th-century composers and librettists sought to shape a musical voice suited to the features of their language. The following chapter is a look at Janáček's unique solution to this challenge. In Chapter 5, the relationship between criticism and composition is examined for these two faces of Czech modernism. Finally, Chapter 6 includes new performance editions of the arias curated for the anthology. Each aria is accompanied by …