Based on the Theory of Planned Behavior (TPB), the purpose of this study was to identify the extent to which variables proposed by the extended TPB (i.e., attitude, subjective norms, perceived behavioral control, and value of music) were associated with non-music majors' intentions to continue participating in ensembles. The final sample included 200 non-music majors (62% return rate) from performing ensembles in the southeastern United States. Participants took an online survey that involved an open-ended question, the TPB Scale, and demographic information. The results of the quantitative data analysis indicated that all four predictor variables appeared to be significant indicators of non-music majors' intentions to continue music participation. These results appeared to be the same when examining contributors of non-music majors' intentions by their year in school. The responses to the open-ended question showed relationships between predictor variables across the data set: (a) attitude, value of music, and subjective norms; (b) perceived behavioral control (self-efficacy) and subjective norms, and (c) perceived behavioral control (controllability), attitude, and value of music. The findings have potential for music educators seeking to understand non-music majors' psychological decision-making processes, as well as for predicting attitudes and behaviors related to continued participation in ensembles.