In reviewing the events of the advances of science and technology of the past two decades one is struck by the magnificence of man's accomplishments. The first moon walk televised live in 1969, the widespread utilization of color television receivers, the educational uses of sophisticated audio-visual equipment such as overhead projectors, slide projection, sound tape recorders, close-circuit television and videotape and the almost omniscient usage of television, is ample evidence to demonstrate that the tools necessary to accomplish a task are readily accessible items in this age. We are introduced to new gadgets, innovations, and events (like the moon walk) at such a rapid pace that we have become more flexible and more receptive to change; so much so that at times many of us are even blase about nearly miraculous accomplishments.

The purpose of this study is to provide a guide for the instruction of a trumpet mariachi performance ensemble in a music curriculum. The fulfillment of this purpose is dependent upon the data supplied in answer to the sub problems: (1) What socio-cultural information provides authentic trumpet mariachi music; (2) What trumpet mariachi literature illustrates the repertoire and style; (3) What instructional source materials may be developed such that Mexican American and non-Mexican American instructors build a competency in repertoire and style; (4) How could this guide be evaluated in its functional design for a music curriculum? The data collected for use in this study has been presented in three major categories: (1) the history and milieu in which the trumpet, mariachi crystalized; (2) the repertoire--its history and function in Mexican society and the transcriptions of types demonstrating the musical structure; and (3) the technical information relative to the instruction of the particular mariachi instruments. An evaluative instrument has been supplied in an attempt to establish the validity of the information and examples provided in this practicum. The validity of the research seems to rest on its authenticity and its serviceability. The findings of this study are stated as assertions …