Serge Koussevitzky, conductor of the Boston Symphony Orchestra from 1924-1949, had, throughout his career, a reputation as a champion of modern music. The anticipation of his arrival in Boston in 1924 sparked a great deal of public debate about his reported modernism which the critics reflected and contributed to. This thesis analyzes the critical reaction, preserved in scrapbooks of newspaper clippings at Symphony Hall, Boston, to Koussevitzky's programming of contemporary music during his first five years with the BSO.

The three respond motets from Matins for the Dead by Robert Parsons constitute an important part of the sacred Latin repertory of mid-sixteenth-century England, illustrating central features of the English mid-century style. Although he worked within a conservative musical tradition, Parsons experimented with that tradition in personal and individual ways. Specifically his modal and thematic construction as well as his practice of musica ficta are singled out for closer analysis. Consequently, a methodology for editorial decisions concerning musica ficta is developed. Two special problems, the simultaneous cross-relation and diminished fourth, are shown as the result of normative polyphonic processes and vertical structures.

The San Juan Ixcoi Mass is part of the San Miguel Acatan Repertory which was found in the northwestern highlands of Guatemala before being purchased by the Lilly Library at Indiana University. Even though the authorship and date of the mass cannot be established, the mass is similar to works from the Josquin generation. Not discounting the few transcription difficulties as well as isolated compositional weaknesses, the San Juan Ixcoi Mass demonstrates the reasonably high quality of music that was performed and even possibly composed in northwestern Guatemala three centuries ago. A modern performance edition of the mass complete with critical notes and commentary on the transcription is included within the thesis.

The purpose of this thesis was to make available for performance and study an edition of the twenty-two secular songs published in this collection by Johann Jacob Löwe and Julius Johann Weiland in 1657. The thesis contains twenty-two secular songs for one, two, or three voices with continuo accompaniment and ritornellos for one or two violins, and/or viola, as well as translations of Lowe's preface and dedication and a poem to Lower and Weiland by Heinrich Schaffer. The work contains three chapters, the first covering Lowe's life and work and association with Weiland, the second the state of German secular song in 16050, and the third a critical commentary on the editing of the songs. Editorial corrections are included.

Santa Eulalia M. Md. 7, dated January 20, 1600, is part of the San Miguel Acatán Repertory, which originated in the northwestern highlands of Guatemala and is presently owned by the Lilly Library of Indiana University. The manuscript contains thirty-four four-part songs and dances, two thirds of which are villancicos for Christmas, Easter, the Eucharist, and the feasts of All Saints and St. Michael. The remaining third consists of Latin biblical texts in either fabordón or contrapuntal settings, three pieces with Náhuatl texts, and an instrumental pavana. The thesis contains a modern edition of Santa Eulalia M. Md. 7 with critical notes and commentary, a comparison of the pieces with villancicos and fabordones of European origin, and a survey of several aspects of Mayan culture.

Benjamin Keach (1640-1704) was a seventeenth-century preacher and hymn writer. He is considered responsible for the introduction and continued use of hymns, as distinct from psalms and paraphrases, in the English Nonconformist churches in the late seventeenth century, and is remembered as the provider of a well-rounded body of hymns for congregational worship. This thesis reviews the historical climate of seventeenth-century England, and discusses Keach's life in terms of that background. Keach's influence on congregational hymn singing, hymn writers, preaching, and education is also examined. Keach's writings and contributions to hymn singing are little known today. This thesis points out the significance of these writings and hymns to seventeenth-century religious life.

This study provides commentary on Mizler's Dissertatio and Anfangs-Gründe des General Basses. Chapter V is an annotated guide to his Neu eröffnete musikalische Bibliothek, one of the earliest German music periodicals. Translations of Mizler's biography in Mattheson's Grundlage einer Ehrenpforte and selected passages of Mizler's Der musikalischer Staarstecher contribute a sampling of the critical polemics among Mizler, Mattheson, and Scheibe. As a proponent of the Aufklärung, Mizler was influenced by Leibnitz, Thomasius, and Wolff. Though his attempts to apply mechanistic principles to music were rejected during his time, his founding of a society of musical sciences, which included J. S. Bach, Telemann, Handel, and C. H. Graun as members, and his efforts to establish music as a scholarly discipline deserve recognition.