Six Degrees of Inner Turbulence (often abbreviated to SDOIT or 6DOIT) is the sixth full-length studio album by progressive metal band Dream Theater. It was released on January 29, 2002 by Elektra Records.
Fans' reactions to the album were mixed, with many pointing to the obvious differences between the two CDs as two different types of Dream Theater style. The first disc is generally seen as experimental and heavy while the second disc is seen to be more in line with the previous Scenes from a Memory.
The first track of the first disc begins with the white noise that ended Scenes from a Memory, while the last track, Losing Time/Grand Finale ends with a long chord played by (synthesised) strings, which was also used as the intro to their next studio album, Train of Thought.
The entire second disc is occupied by the 42-minute title song broken into 8 tracks.
The first track of the album, "The Glass Prison," tells Mike Portnoy's story of rehabilitation from alcoholism. "The Glass Prison" is comprised of three parts and Portnoy intends to extend the song into twelve parts that mirror the twelve steps of the AA program by Bill W. for rehabilitation of alcoholics. This song is continued in tracks on the next albums ("This Dying Soul" on Train of Thought, "The Root of All Evil" on Octavarium and "Repentance" on Systematic Chaos, Dream Theater's newest album).
The Great Debate is a non-partisan song dealing with the topic of stem-cell research.
The recording is a type of concept album wherein the five songs which comprise the first disc explore different themes of lifetime struggle, such as Alcoholism, Loss of Faith and Death. The sixth song—-that is, the complete second disc—-explores the stories of six individuals suffering from various mental illnesses. Particularly represented are bipolar, post-traumatic stress disorder, schizophrenia, post-partum depression, autism, and dissociative personality disorder.
The musical styles of each section of the title track are direct reflections of the band's large variety of influences. Indeed, classical, folk and metal styles combine effortlessly within the track. Additionally, certain parts of the track are direct nods to specific songs from influential artists. The end of "Goodnight Kiss" bears unquestionable resemblance to Kansas's "The Wall" from their Leftoverture album. "Solitary Shell" is a nod to Peter Gabriel's "Solsbury Hill" both in name and in musical style. Some fans see this as a citation, but others claim it's pure copying. Also, parts of "Solitary Shell" bear strong resistance to Billy Joel's song "The Entertainer," mainly due to the unique synth-organ which sounds alike in both songs, played over acoustic guitar.
James LaBrie – vocals
John Myung – bass
John Petrucci – guitars, vocals
Mike Portnoy – drums, vocals
Jordan Rudess – keyboards
01. The Glass Prison - 13'52
02. Blind Faith - 10'21
03. Misunderstood - 9'32
04. The Great Debate - 13'45
05. Disappear - 6'45
01. Six Degrees of Inner Turbulence(VIII Parts) - 42'02
II-About To Crash
III-War Inside My Head
IV-The Test That Stumped Them All
VII-About to Crash (Reprise)
VIII-Losing Time/Grand Finale