Invisible Astro Healing Rhythm Quartet, founded by trumpeter Kris Tiner and saxophonist Phillip Greenlief, is a California-based ensemble known for their exploratory blend of modal jazz, avant-garde improvisation, and cosmic groove. Rooted in the spirit of 1970s spiritual jazz and influenced by the openness of West Coast experimentalism, the group weaves meditative textures with dynamic rhythmic interplay. Both seasoned composers and improvisers, Tiner and Greenlief have collaborated widely across the creative music spectrum, forging a sound that bridges deep tradition with forward-looking expression.