Matt Guillory (born January 16, 1974) is an American musician. He mainly plays keyboards and tends to write progressive metal. He has often been compared to the Swedish keyboard player Jens Johansson, famous for his work in the power metal band Stratovarius. Matt Guillory has worked for Mike Varney, appearing on several mid 1990s records as session player. Guillory also works with James LaBrie, best known as Dream Theater's vocalist, as a composer and keyboardist on the singer's first five solo releases. He was one of the founding members of the Bay Area based progressive metal band Dali's Dilemma.[1] Guillory is a long time user of the Roland JD-800 synthesizer, which he plugs into a Line 6 Pod amp modelling/effects unit and a wah pedal to create a more guitar-like tone for his lead sound.