The only specific reference to 'Timmer's Guitarmageddon' (result #9) is a Facebook event page titled 'Timmer's Guitarmageddon Wednesdays: Garry Mezier vs CD...' which appears to be a recurring event or competition, not a performing artist or band. Other 'Guitarmageddon' results refer to different contexts (Vinnie Vincent album, The Reacharounds song, a guitar competition, venue events), but none identify 'Timmer's Guitarmageddon' as an actual artist/band.