Prior research indicates that listeners’ perceptions of music are influenced by the expressed approval of others. The focus of this investigation was the extent to which applause, an overt expression of approval from an audience of other listeners, influenced musicians’ perceptions of ensemble performances, specifically the effects of applause magnitude (high magnitude applause, low magnitude applause, or no applause) and musical style (ballad or march). Undergraduate instrumentalists (N = 98) from five institutions listened to recorded excerpts of wind band music—three identical recordings of a ballad and three identical recordings of a march. A distinct applause magnitude condition was electronically attached to each recording, resulting in six unique stimuli. For each excerpt, participants rated eight performance dimensions, which were summed to create a composite rating. Results indicated that listeners’ composite ratings were influenced by an interaction between applause magnitude and musical style. Furthermore, a significant three-way interaction among applause, style, and performance dimension was observed, but the effect size was small. Another significant main effect was found, which could be evidence of an order effect. Results of this study suggest that listeners perceive different audience responses to be approving of musical performances, based on the musical style of works being performed.