Isis (sometimes stylized ISIS) was an American post-metal band formed in Boston, Massachusetts in 1997. The band borrowed from and helped to evolve the post-metal sound pioneered by bands such as Neurosis and Godflesh, characterized by lengthy songs focusing on repetition and evolution of structure. Isis's last studio album, Wavering Radiant, was released on May 5, 2009. Isis disbanded in June 2010, just before the release of a split EP with the Melvins. In 2018, the group reformed as Celestial for a one-off show to pay tribute to Caleb Scofield. History Formation, Celestial, and other early releases (1997–2001) In Boston, several sessions of experimentation led friends Aaron Turner (guitar/vocals; also the owner of Hydra Head Records and its subsidiary, HH Noise Industries), Jeff Caxide (bass guitar), Chris Mereschuk (electronics/vocals) and Aaron Harris (drums) to form Isis in autumn of 1997. As Turner stated, "Isis formed as a result of the dissatisfaction with past bands of the founding members. None of us were happy with what we were doing musically at the time, two of us lived together, we had similar tastes and similar record collections." The band began playing out in the spring of 1998, and recorded a demo at Salad Days Studios shortly thereafter. After an East Coast tour in the summer of 1998 where they were joined by Randy Larsen of Cable on guitar, Mereschuk left the band. In 1999, Michael Gallagher (formerly of Cast Iron Hike) and Jay Randall (now of Agoraphobic Nosebleed) joined the band, working on Red Sea (1999). Jay Randall's time with the band was brief, and Isis recruited guitarist/keyboardist Bryant Clifford Meyer (formerly of The Gersch) to replace him. After releasing their full-length debut entitled Celestial (2000) and its sister EP, SGNL›05 (2001, on Neurot Recordings), Isis gained national underground attention in the metal/hardcore scene through tours with Cave In and Neurosis. Isis remained with this lineup until their dissolution in 2010. For the SGNL›05 EP, they contacted Godflesh member Justin Broadrick through their friends in Neurosis to remix the title track from Celestial, which they used as the EP's closer. Following SGNL›05, the band felt a need to expand its ambit, both artistically and in terms of distributive reach. The entire band were avid fans of Melvins, so their label – Mike Patton's Ipecac Recordings – was instantly put forward as an ideal candidate. Turner's friend James Plotkin was already working with