Matt Guillory

Matt Guillory (born 1974) is an American musician. He plays the keyboard and also writes songs in the progressive metal music genre. He uses the vibrato and bending techniques. Guillory's main gig is with Dream Theater's vocalist

Matt Guillory (born 1974) is an American musician. He plays the keyboard and also writes songs in the progressive metal music genre. He uses the vibrato and bending techniques. Guillory's main gig is with Dream Theater's vocalist James LaBrie. He is also one of the founding members of the North-Californian based progressive metal band Dali's Dilemma.