Matt Guillory is an American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 musician

Musician

A musician is an artist who plays a musical instrument. It may or may not be the person's profession. Musicians can be classified by their roles in performing music and writing music.Also....* A person who makes music a profession....

. He mainly plays keyboards

Keyboard instrument

A keyboard instrument is a musical instrument which is played using a musical keyboard. The most common of these is the piano. Other widely used keyboard instruments include organs of various types as well as other mechanical, electromechanical and electronic instruments...

 and tends to write progressive metal

Progressive metal

Progressive metal is a subgenre of heavy metal originating in the United Kingdom and North America in the late 1980s...

. He has often been compared to the Swedish keyboard player Jens Johansson

Jens Johansson

Jens Ola Johansson is a Swedish power metal keyboardist and pianist. He is notable for his high-speed neoclassical and fusion style.-Biography:...

, famous for his work in the power metal band Stratovarius

Stratovarius

Stratovarius are a Finnish power metal band that formed in 1984. Since their formation they have released 13 studio albums and one live album. Along with Helloween, Blind Guardian, Rhapsody of Fire and Gamma Ray, Stratovarius are considered one of the leading groups of the power metal and symphonic...

. Matt Guillory has worked for Mike Varney

Mike Varney

Mike Varney is an American musician, record producer, music publisher and impresario. He is the founder of the Shrapnel Label Group, which includes Shrapnel Records, Tone Center Records and Blues Bureau International. He also has a 50% stake in Magna Carta Records, a New York-based label...

, appearing on several mid 90's records as session player. Guillory currently works with Dream Theater's vocalist James LaBrie

James LaBrie

Kevin James LaBrie is a Canadian vocalist who is best known as the lead singer of the American progressive metal band Dream Theater.-Early life:...

, writing and co-writing songs on the singer's solo releases. He was one of the founding members of the Bay Area based progressive metal band Dali's Dilemma. Guillory is a long time user of the Roland JD-800

Roland JD-800

The JD-800 was a digital synthesizer released by Roland in 1991. The synthesizer featured many knobs and sliders for patch editing and performance control - features which some manufacturers, including Roland, had been omitting in the name of 'streamlining' since the inception of Yamaha's DX-7...

 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.

Discography

• Dali's Dilemma - Manifesto For Futurism
• Explorers Club - Age of Impact
  Age of Impact
  -Personnel:*James LaBrie – lead vocals*Bret Douglas – lead vocals*Matt Bradley – lead vocals*D.C. Cooper – lead vocals*Trent Gardner – keyboards, trombone, lead vocals*Wayne Gardner – electric and acoustic guitars, some bass...
  
  - keyboards
• James LaBrie's MullMuzzler
  MullMuzzler
  MullMuzzler was the name of the progressive metal solo side project by James LaBrie, the lead singer of Dream Theater, before recording under his own name in 2005. The band consisted of James LaBrie, Bryan Beller, Matt Guillory, Mike Mangini and Mike Keneally. The record company wouldn't allow...
  
   - Keep It To Yourself
  Keep It to Yourself
  Keep It To Yourself is the debut album by MullMuzzler . It was released on August 24, 1999.-Track listing:# "His Voice" - 3:43 # "Statued" - 3:23...
  
  - keyboards, piano
• James LaBrie's MullMuzzler
  MullMuzzler
  MullMuzzler was the name of the progressive metal solo side project by James LaBrie, the lead singer of Dream Theater, before recording under his own name in 2005. The band consisted of James LaBrie, Bryan Beller, Matt Guillory, Mike Mangini and Mike Keneally. The record company wouldn't allow...
  
   - MullMuzzler 2
  MullMuzzler 2
  MullMuzzler 2 is the second solo album by Dream Theater lead singer James LaBrie with his band MullMuzzler...
  
  - keyboards, piano, sampling
• James LaBrie - Elements of Persuasion
  Elements of Persuasion
  Elements of Persuasion, released March 29, 2005, is Dream Theater lead singer James LaBrie's third solo album, his first two being Keep It To Yourself and MullMuzzler 2, which were released under his band MullMuzzler....
  
  - keyboards, additional guitar
• James LaBrie - Static Impulse
  Static Impulse
  Static Impulse is the second solo album and fourth solo project by Dream Theater lead singer James LaBrie released on September 28, 2010. In late August 2010, LaBrie released two songs from the album titled "One More Time" and "I Need You"....
  
  - keyboards, backing vocals (Guillory also sang the lead vocals on the demo recordings for this album)
• Zero Hour
  Zero Hour (band)
  Zero Hour is a progressive metal band formed by twin brothers Jasun Tipton and Troy Tipton in Pleasanton, California in 1993.The band is signed by Sensory Label....
  
   - Zero Hour
  Zero Hour (Zero Hour album)
  Zero Hour is Zero Hour's first album. Released in 1999, it was limited to 2100 copies.-Track listing:# Eyes of Denial  – 4:42# The System Remains  – 7:22# Voice of Reason  – 8:40# A Passage  – 2:25# I. Descent  – 3:45...
  
  - keyboards
• Marco Sfogli
  Marco Sfogli
  Marco Sfogli is an Italian rock guitarist. He has appeared on several albums.- History:Born in 1980, his first attempt with music came in 1984 when he played with his parents in Schwetzingen, Germany during an encore. But the story starts in 1989 when he received his first electric guitar as a...
  
   - There's Hope
  There's Hope
  There's Hope is the first instrumental solo album by James Labrie guitar player Marco Sfogli. It was released on February 15, 2008.-Track listing:# "Still Hurts" - 5:02# "Andromeda" - 6:30# "Seven" - 5:01# "There's Hope" - 4:01...