The present study was designed to investigate what types of communication cues performers and audience members regard as important during music performance. Our attempt differed from other studies in that it explored a holistic perspective of multiple cues in music performance through self-reports. The questionnaires provided a simple model of reciprocal communication flows among four roles, namely, performer, co-performer, audience, and co-audience member, as well as 10 types of communication cues, namely, facial expression, gaze, body movement, posture, touch, interpersonal distance, verbal information, attire, breath, and musical sound. A total of 86 performers and 149 audience members filled in the questionnaires. In referring to this model and imagining music performances, they rated the importance of communication cues according to their role as performers or audience members, situations (practice/performance). Performers selected the music genres that their performances usually play. Performers were also asked to draw stage positioning in music performance. The main findings are as follows: (1) Participants' roles as either performers or audience members affected their opinions about the importance of communication cues. In inter-performer communication, sound, gaze, body movement, facial expression, and breath were rated as highly important in both practice and performance. In performer-to-audience communication, musical sound, facial expression, and body movement were rated as highly important.