CM-4 is the new solo moniker of San Francisco based producer and DJ Cassidy Martin. As one of the founders of Outpost SF, Cassidy thrives in underground atmospheres and venues. His sounds are rhythmic and melodic, echoing influence from the renegade parties of Santa Cruz and SF alike. "Summit" and "Nisene Marks" are the first two originals under his new alias and come with remixes from fellow bay area producers, Nackt and Court.