Angel Coma is a split album by Earth and another band formed by what Stephen O'Malley and what other core member?
Angel Coma: Angel Coma is a split album by Sunn O))) and Earth featuring material reminiscent of the "Black One" and "Hex" sessions. Sunn O))):  Supported by a varying cast of collaborators, the band was formed by two core members: Stephen O'Malley (also of Khanate and Burning Witch) and Greg Anderson (of Goatsnake and Engine Kid).
Greg Anderson