keyboardist Jim Cooper teamed with Hartman on production. Hartman and Schlitt have since performed several shows together, playing acoustic renditions of Petra and II Guys songs as recently as early 2010.John Schlitt tour page. Reunion shows The full band as comprised on the Farewell tour first reunited at the end of 2007, playing a 90-minute set in Buenos Aires as part of Rock & Vida, a festival to commemorate World AIDS Day. The lineup consisted of Hartman, Schlitt, Simmons and Bailey. This version of Petra, though in some cases with Simmons replaced by Christian Borneo on drums, reunited four more times in 2010, appearing at Heaven Fest in Longmont, Colorado, and Hills Alive Festival in Rapid City, South Dakota, as well as performing a pair of shows in Brazil. The band performed again at Rock & Vida in December 2010. Classic Petra and Back to the Rock (2010–2011) In early 2010, Hartman and former Petra members agreed to reunite to record an album in the fall, with a subsequent world tour. The lineup featured Hartman on guitars, Greg X. Volz on vocals, Mark Kelly on bass, Louie Weaver on drums and John Lawry on keyboards. Although that specific lineup recorded only one studio album together – Beat the System in 1985 – Hartman, Volz, Kelly and Weaver were the heart of Petra's initial wave of success, recording More Power to Ya, Not of This World and Beat the System together before Volz's departure in 1986. Additionally, Weaver toured with the band in support of Never Say Die, Petra's first significant tour. Lawry, meanwhile, was Petra's longest-tenured keyboardist, joining the band on the Not of This World tour in 1984 and leaving 10 years later, at the end of Petra's second wave of success. Along with recording Beat the System, this iteration of Petra also was filmed for Captured in Time and Space, the first of the band's two live albums. The album, Back to the Rock, was released for digital download in November 2010, with hard copies also sold at the band's November concert taping. It featured re-recordings of 10 classic Petra songs from the early and mid-1980s, as well as two new tracks. Hard copies of the CD went on sale in January 2011. That same month, the members of Classic Petra played a live show together for the first time in decades, taping the concert at the TBN