The present study does not attempt to present a complete or exhaustive survey of the myriad spatial orchestrational devices occurring in the symphonic and operatic repertoire. Rather, the study is limited to an examination of the specified use of the trumpet as an offstage instrument in selected representative works. The study's purpose is to identify trends in the use of this orchestrational device, to serve as an aid to the trumpeter in matters of interpretation, and to provide a practical reference for the solution of acoustical and technical problems common to the performance of spatially conceived music in the orchestral literature.

This document discusses the relationship between trumpet and percussion over the past centuries, the development of music for trumpet and percussion ensembles, trumpet and percussion in twentieth-century chamber music and the creation of music for trumpet and marimba. A listing of all known trumpet and percussion duos is included. An exploration of the development of the Wilder Duo and a listing of all known trumpet and marimba duos is also included. There are analyses of works by Gordon Stout, Paul Turok and Alec Wilder. These analyses examine sound, form, harmony, melody and rhythm for each piece. Musical illustrations are included. These analyses are divided into chapters. Each chapter begins with a short biography of each composer. A short description of each work is also given. Summaries are included at the end of each analytical chapter.

During the late sixteenth and early seventeenth centuries, Venetian society and politics could be considered as a "polychoral culture." The imagination of the republic rested upon a shared set of social attitudes and beliefs. The political structure included several social groups that functioned as identifiable entities; republican ideologies construed them together as parts of a single harmonious whole. Venice furthermore employed notions of the republic to bolster political and religious independence, in particular from Rome. As is well known, music often contributes to the production and transmission of ideology, and polychoral music in Venice was no exception. Multi-choir music often accompanied religious and civic celebrations in the basilica of San Marco and elsewhere that emphasized the so-called "myth of Venice," the city's complex of religious beliefs and historical heritage. These myths were shared among Venetians and transformed through annual rituals into communal knowledge of the republic. Andrea and Giovanni Gabrieli and other Venetian composers wrote polychoral pieces that were structurally homologous with the imagination of the republic. Through its internal structures, polychoral music projected the local ideology of group harmony. Pieces used interaction among hierarchical choirs - their alternation in dialogue and repetition - as rhetorical means, first to create …