Ambient Sufism is a study of the intertwined musical lives of several ritual communities in Tunisia that invoke the healing powers of long-deceased Muslim saints through music-driven trance rituals. Richard C. Jankowsky illuminates the virtually undocumented role of women and minorities in shaping the ritual musical landscape of the region, with case studies on menhsquo;s and women squo;s Sufi orders, Jewish and black Tunisian healing musical troupes, and the popular music of hard-drinking laborers, as well as the cohorts involved in mass-mediated staged spectacles of ritual that continue to inject ritual sounds into the public sphere. He uses the term dquo;ambient Sufismndquo; to illuminate these adjacent ritual practices, each serving as a musical, social, and devotional-therapeutic niche while contributing to a larger, shared ecology of practices surrounding and invoking the figures of saints. And he argues that ritual musical formxdash;that is, the large-scale structuring of ritual through musical organizationadash;has agency; that is, form is revealing and constitutive of experience and encourages particular subjectivities. Ambient Sufism promises many useful ideas for ethnomusicology, anthropology, Islamic and religious studies, and North African studies.