Thesis (Ph. D.)--University of Adelaide, 1984. / Includes index.

Thesis (doctoral)--Bonn. / Includes indexes. Thematic catalog: p. 399-505. Includes bibliographical references (p. 538-556).

Paul M. Walker points out the importance of three seventeenth-century manuscripts which, according to him, reflect the origins of the late Baroque monothematic fugue. The documents present a new "model" with specific criteria to write monothematic fugues. Walker suggests that the criteria presented in these manuscripts are first found in seventeenth-century Italian violin ensemble fugues. This thesis traces the development of seventeenth-century monothematic fugues and how they compare with the criteria presented in the manuscripts, with a particular emphasis on Italian violin ensemble fugues. The manuscripts indeed present a new "model" to write monothematic fugues as compared to earlier models. Generally speaking, the criteria included in the manuscripts are more present in monothematic fugues found in seventeenth-century violin ensemble music than in keyboard music of the same period. However, many of these imitative pieces present characteristics of fugato (rather than "true" fugues) and cannot be compared with the manuscripts' criteria. Therefore, the documents are important from a theoretical standpoint but their practical application in seventeenth-century violin music is not as clear or systematic as Walker implies.

Giovanni Legrenzi was a prolific composer of vocal music and maestro di cappella at the Basilica di San Marco but his vocal works are not often studied as a part of the Venetian lineage with composers such as Willaert, de Rore, Zarlino, Monteverdi, Cavalli, and Vivaldi. Despite his being a prolific composer who had significant influence on the work of other musicians in the traditional canon, references to Legrenzi in standard music publications (Grout, Taruskin, Grove Music Online, etc.) are at best sparse, and largely biographical. This dissertation is one step to correct that pattern by creating a performance edition of Sacri e festivi concenti, Opera nona, one of Legrenzi's significant works near the beginning of his Venetian period. This collection of sacred music was published on 12 June 1667 in Venice though Legrenzi's exact whereabouts at the time remain uncertain. This phase of his career can be defined by his having sought more prestigious and lucrative employment. Having lived and worked in rural Lombardy and Ferrara, he made unsuccessful overtures in places such as Milan, Bologna, Vienna, and Paris. A full score has been produced by transcribing from the part books of the Bologna Museo copy, which will allow consumers to have insight into Legrenzi's music. A performance edition of these Vespers settings is important because it would increase access to, and understanding of, Giovanni Legrenzi's music. This era of Italian music between Monteverdi and Vivaldi is often underperformed by practitioners. One goal of this project is to broaden the work's circulation through a music publisher that would be willing to include portions of the chapters outlined in this proposal. Doing so would offer the work as a good specimen of the period to a wider audience of performers and scholars alike.

The early trumpet arias by Giovanni Legrenzi and Carlo Pallavicino are important works in the trumpet repertoire that have remained relatively unpublished and unstudied. This dissertation will look at the history of the trumpet in opera, discuss the development of the trumpet aria, and provide examples of how to approach the performance of the trumpet aria. Through study and performance of the early trumpet arias by Legrenzi and Pallavicino, trumpet soloists will be able to learn the necessary techniques to collaborate with singers and perform all trumpet arias.