Several performers develop ways through subjective and objective testing to express what tone or sound, or combination of tones or sounds as well as a color or colors, masks and costumes is most beneficial for a particular person. Beneficial means that which produces a feeling of well-being in a person. The performers demonstrate an inviting process to the audience. … Individual audience members are invited to participate in a way facilitated by the performers, which results in an orchestration of individual portraits enhanced by sound, special lighting, masks and costumes in a gradually changing tableaux.

Pauline Oliveros, Deep Listening, loc. 373