This dissertation presents a categorization of existing methodologies of upper register development for euphoniumists with evaluation of effectiveness and current use of these methodologies. The purpose of this study is to provide euphonium musicians as well as educators with essential references and guides to applicable methods for developing the upper register more effectively with greater efficacy. The assessments of current methodologies include three steps: categorization, summarization, and evaluation. To support the significance why it could be more beneficial than the methodology alone, the dissertation will include the examination of the aspect of biomechanics and ergonomics, suggestions, and discussion of particular issues of the upper register.

In this study, I examined the awareness, perceptions of required knowledge, and perceived competency of Texas secondary choral music educators concerning the new musician health objectives included in the revised Texas Essential Knowledge and Skills standards (TEKS). A secondary purpose of this study was to identify the activities and variables that promote the development of these characteristics and prepare educators to address the standards in their instruction. Using a researcher-designed web-based survey instrument, I gathered data from participants who were actively teaching choir in secondary public schools in the state of Texas (N = 183). As part of the survey, participants reported the highest degree they had attained and field of study, the completion of choral methods and vocal pedagogy courses during their training, participation in professional development, and years of teaching experience. Findings revealed that a majority of participants (53.01%) were not aware of the health-related standards prior to taking the survey. A majority also did not consider each objective as required curricular components (hydration: 69.95%, vocal health: 39.89%, body mechanics: 61.75%, hearing protection: 68.85%, hygienic practice: 69.96%). Participants did rate themselves highly for perceived competency, a measure including adherence to competent practices and views of personal ability. There were no statistically significant main effects observed for any variable on awareness and perceptions of knowledge. I did observe significant main effects of degree level and major, professional development participation, and completion of a choral methods course for measures of perceived competency.

This study assessed music educators' health literacy, musician health literacy, and intentions to teach the health-related Fine Arts TEKS in ensembles. An online survey was developed using the integrated behavior model, Newest Vital Sign (NVS), and Musician Health Literacy Questionnaire (MHL-Q19). Texas music educators who taught secondary band, choir, or orchestra were recruited via email and social media. Results: This survey yielded N = 207 respondents, with 43%, 29%, 14.5%, and 13.5% teaching band, choir, orchestra, and multiple ensembles, respectively. Most participants (67.6%) demonstrated adequate health literacy by answering at least four items correctly on the NVS. Attitude (p =.47) and personal agency (p =.30) were significant predictors of behavioral intention, while perceived norm was not (R2 =.484). Including NVS total score and MHL-Q19 total score in the model showed that while both factors improved the model (ΔR2=.038), only NVS total score was significant (p =.26) in predicting behavioral intention. Music educators in this study had adequate health literacy, which may contribute to their intentions to teach health concepts in ensembles. However, future efforts to improve these intentions should focus on bolstering perceived norms and personal agency by providing music educators with opportunities to take charge of implementing these concepts in their classrooms while showing that other stakeholders (i.e., campus administration, parents of students, and music educator colleagues) are also invested in presenting health concepts to student-musicians.