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. Songs The first track of the album, "The Glass Prison", is the beginning of the Twelve-step Suite, dealing with Mike Portnoy's story of rehabilitation from alcoholism, continued in tracks on subsequent albums ("This Dying Soul" on Train of Thought, "The Root of All Evil" on Octavarium, "Repentance" on Systematic Chaos and "The Shattered Fortress" on Black Clouds & Silver Linings). "The Glass Prison" is composed of three parts, mirroring the first three of the twelve steps of the AA program by Bill W. for rehabilitation of alcoholics. Furthermore, it begins with the static phonograph noise that ended "Finally Free" on Metropolis Pt. 2: Scenes from a Memory (1999). "Blind Faith" features lyrics written by James LaBrie about questioning religious belief. It is the second longest song for which LaBrie has contributed lyrics to date, the longest being "Sacrificed Sons" from Octavarium. It was also the first time he had written lyrics for more than one song on an album. The next time would also be on Octavarium. In the song "Misunderstood", John Petrucci wrote and played the guitar solo, and then reversed it. He then learned how to play this reversed version, and he tries to mimic the reversed version live with effects. This track is in its shorter radio edit form on the cassette edition. "The Great Debate" is intended to be a non-partisan song dealing with the topic of stem-cell research. It was originally titled "Conflict at Ground Zero" based on the lyrics in the chorus but was changed at the last minute as news reports started to refer to the site of the 9/11 terrorist attack in New York City as "Ground Zero". The band was actually in a Manhattan studio conducting final mixes of the album on the day in question. Lyrics for the song "Disappear" were written by James LaBrie about the subject of death; it was originally titled "Move On". This track is omitted entirely from the cassette edition. The sixth song, "Six Degrees