Six Degrees of Inner Turbulence
Six Degrees of Inner Turbulence is the sixth full-length studio album by progressive metal band Dream Theater, released as a double-disc album on January 29, 2002 through Elektra Records. Excluding the "A Change of Seasons" EP, it is the first Dream Theater album to feature a title track. It is also their second longest studio album to date, after "The Astonishing" (2016). All songs from it have been played live. Influences. Influences for the album's writing and recording, according to the authors, include Metallica's "Master of Puppets", Radiohead's "OK Computer  (and also a Radiohead bootleg Portnoy brought in), Pantera's Far Beyond Driven" and the song "Mouth for War", Megadeth's "Rust in Peace", U2's "Achtung Baby", Tool's "Ænima", Nine Inch Nails' "The Downward Spiral", Soundgarden's "Superunknown", Alice in Chains' "Dirt", Kevin Gilbert's "Thud", King's X's "Faith Hope Love" and Galactic Cowboys' "Space in Your Face", Béla Bartók, Rage Against the Machine's "The Battle of Los Angeles", and Maria Tipo's "Chopin Nocturnes".