The purpose of this study was to determine the effects of an auditor's past musical training and experience on the intelligibility of selected vowel sounds at differential pitch levels. The specific problems of the study were to investigate the effects of extensive vocal music training, extensive non-vocal music training, and limited or no music training on an auditor's ability to discriminate accurately selected vowel sounds performed at various pitch levels. The effects of pitch and vowel sound on auditor recognition of vowel sounds in singing and the ability of each singer to be intelligible to auditors was also investigated.

The purpose of this study was to investigate the development of occupational identity in undergraduate music education majors using a Symbolic Interactionist theoretical framework. Three research problems were formulated: (1) The identification of occupational norms and values of undergraduate music education majors; (2) The determination of the commitment of under graduate music education majors to specific skills and knowledge of music education; (3) The determination of career commitment to music education by undergraduate majors. The sample consisted of undergraduate music education majors enrolled in North Texas State University; Denton, Texas, during 1981 and 1982. A questionnaire and interview schedule, which had been developed in a pilot study, were used to gather data. Questionnaire responses from 165 students were analyzed by comparing selected variables by area and by class year. These data were further clarified by information from thirty-eight interviews conducted by this researcher.

The purpose of this study was to investigate the frequency modulations and the intensity modulations of the hand vibrato and the jaw vibrato as they relate to performance on selected brass instruments. Ten trumpet players and ten trombone players were recorded performing a musical exercise which was written in three different registers. Five performers in each group used a hand vibrato and five used a jaw vibrato.