Systematic Chaos is the ninth studio album by American progressive metal band Dream Theater. Released on June 4, 2007 in the United Kingdom and June 5, 2007 in the United States, Systematic Chaos was the band's first release through Roadrunner Records. The album was recorded from September 2006 to February 2007 at Avatar Studios in New York City, after the band's first break from summer touring in ten years. The lyrics of the album were written by John Petrucci, James LaBrie, and Mike Portnoy about fictional, political, and personal topics, respectively.

Guitar World magazine and Warner Bros. Publications have teamed up to bring you yet another exciting educational series! Watch as John Petrucci details the patterns and techniques that have helped make Dream Theater what it is today. A member of one of the most amazing guitar bands of our generation, John Petrucci educates teachers and students alike with this fantastic new book! Includes over 130 music examples, transcribed solos, and techniques to help expand your vocabulary, creativity, and chord knowledge.