Terry Riley's "Persian Surgery Dervishes," released on January 1, 1993, under the Elision Fields label, is a captivating exploration of minimalism, avant-garde, experimental, drone, and ambient genres. Spanning a total duration of 1 hour and 31 minutes, this album is divided into four distinct parts, each offering a unique journey into Riley's sonic landscape. Performance One and Performance Two, each split into two parts, weave together intricate layers of sound, creating a mesmerizing tapestry that showcases Riley's mastery of these genres. The album is a testament to his innovative approach to music, blending traditional influences with modern experimental techniques. "Persian Surgery Dervishes" is not just an album but a profound experience, inviting the audience to immerse themselves in the intricate and evolving soundscape crafted by Terry Riley.