Zero Order Phase is the Progressive Metal debut solo album by former Nevermore guitarist Jeff Loomis . It was released on September 30, 2008 through Century Media Records. The album was produced by Neil Kernon and features guest appearances by guitarists Ron Jarzombek , Pat O'Brien , and the jazz bassist Michael Manring . An instrumental album, Zero Order Phase was recorded in March 2008 at Robert Lang Studios in Seattle, Washington. In addition to Loomis on guitar, keyboards and bass, the album features ex-Nevermore member Mark Arrington on drums. Zero Order Phase was recorded during a month and a half, at the Robert Lang Studios in Richmond Beach, Washington. Zero Order Phase was described as "a good instrumental guitar CD" by About.com reviewer Chad Bowar. He also praised Loomis stating: "excellent guitar skills technical riffs, creative solos and nonstop shredding". Ryan Ogle of Blabbermouth.net said the album was "one goddamned fiery tribute to the instrumental shred lords that have inspired his playing". Eduardo Rivadavia of Allmusic wrote: "guitarist Jeff Loomis has unearthed the instrumental guitar hero template that was briefly made popular by Joe Satriani in the late '80s and early '90s," he also stated that "tracks like 'Shouting Fire at a Funeral,' 'Jato Unit,' and 'Devil Theory' are entrenched in the metallic music ingredients he is renowned for." 'Azure Haze' and 'Sacristy', were defined as "sweeping ballads"; on the last one, Loomis was again compared with