The Human Equation

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The Human Equation
Ayreon - Human Equation.jpg
Studio album by
Released25 May 2004
RecordedOctober 2003–March 2004
GenreProgressive metal[1]
LabelInside Out Music
ProducerArjen Lucassen
Ayreon chronology
Universal Migrator Part 2: Flight of the Migrator
The Human Equation
Arjen Anthony Lucassen chronology
Live on Earth
The Human Equation
Embrace the Storm

The Human Equation is the sixth album from the progressive rock project Ayreon by Dutch musician Arjen Anthony Lucassen, released on 25 May 2004 via Inside Out Music. As with other Ayreon albums, it features guest appearances from several musicians previously unrelated to the project, including James LaBrie of Dream Theater, Mikael Åkerfeldt of Opeth, Eric Clayton of Saviour Machine, and Devin Townsend, performing music arranged and written by Lucassen.

As with nearly every Ayreon album, it is a concept album with each character being portrayed by one singer. However unlike previous albums, The Human Equation is not a sci-fi story but take place almost entirely in the mind of a character called Me (played by LaBrie) who is in a coma after a car accident, with each song consisting of one day spent in coma. While his Wife (Marcela Bovio) and Best Friend (Lucassen) are at his side in the real world, Me, trapped in his own mind, encounters representations of his own feelings and recall his life from his childhood to his accident.

The album was released in three different editions: a regular edition with two CDs, a Special Edition with two CDs and a DVD, and a Limited Deluxe Edition with two CDs, a DVD and a 36-page booklet. The album peaked at #7 at Dutch Albums Chart and at #50 at Germany Albums Top 50.[2][3] The album was also released on vinyl in December 2012.[4]

The Human Equation is one of the few Ayreon albums in which Lucassen did not write all the lyrics (the others are Into the Electric Castle and The Theory of Everything): Townsend wrote all lyrics for his character Rage, while Heather Findlay of Mostly Autumn and Devon Graves of Deadsoul Tribe also wrote some of the lyrics for their characters, Love and Agony. The albums marks the first collaboration between Lucassen and Bovio, selected by Lucassen via an internet female singing contest to play Wife. The following year, Bovio and Lucassen created together progressive/symphonic metal band Stream of Passion.

Concept and storyline[edit]

The album explores the idea of psychological rebirth, and follows the story of a man who, after falling into a coma following a car accident, is confronted with his past, his emotions, and his current situation as he lays trapped inside his own mind. The circumstances surrounding the accident are mysterious, as the man ("Me", portrayed by James LaBrie) ploughed into a tree on a deserted road in broad daylight. Following this, he slips into a twenty-day coma, with each day represented by a single song. Each song follows a slightly different format, though there are major common themes, such as the presence of Me's manifest emotions in his dream world including Fear (Mikael Åkerfeldt), Reason (Eric Clayton), and Pride (Magnus Ekwall); the presence of Me's Wife (Marcela Bovio) Best Friend (Arjen Anthony Lucassen) at his bedside; and the past events that Me is forced to reflect on.

The plot builds from Me’s early broken state to his eventual rebirth as a new and better man. His own dark past, in which he suffered beneath an abusive Father (Mike Baker), was driven to become merciless by school bullies, and eventually betrayed his closest friend for his own benefit; is intertwined with the plot surrounding Wife and Best Friend, eventually revealing the cause of the accident: Me had witnessed the two sharing an intimate moment, and had swerved his car into a tree in his despair. The three eventually come clean and forgive each other, leading Me to conquer his negative emotions and escape his nightmarish prison.

The story terminates with a sci-fi twist in contrast to the psychodrama of the album, but reminiscent of earlier Ayreon releases. The final song cuts suddenly to silence as it crescendoes to a climax, and a computerised voice announces the shut-down of the Dream Sequencer. The voice of Forever of the Stars then speaks the final words of the album ("Emotions...I remember..."), tying its events into the overall Ayreon plot that began with The Final Experiment.

The Theater Equation[edit]

Track listing[edit]

All lyrics written by Arjen Anthony Lucassen except where noted; all music composed by Lucassen.

CD 1
No.TitleVocals (in order of appearance)Length
1."Day One: Vigil"Arjen Anthony Lucassen, Marcela Bovio1:33
2."Day Two: Isolation"James LaBrie, Mikael Åkerfeldt, Eric Clayton, Irene Jansen, Magnus Ekwall, Heather Findlay8:42
3."Day Three: Pain" (Lucassen/Devin Townsend)Devon Graves, LaBrie, Devin Townsend, Findlay4:58
4."Day Four: Mystery"Lucassen, Bovio, Jansen, LaBrie, Ekwall, Findlay, Graves5:37
5."Day Five: Voices"Ekwall, LaBrie, Clayton, Findlay, Åkerfeldt7:09
6."Day Six: Childhood"Graves, LaBrie, Åkerfeldt5:05
7."Day Seven: Hope"Lucassen, LaBrie2:47
8."Day Eight: School" (Lucassen/Townsend)Åkerfeldt, LaBrie, Townsend, Graves, Ekwall, Clayton, Jansen4:22
9."Day Nine: Playground" (Adaptation of Edvard Grieg's "Morning Mood")instrumental2:15
10."Day Ten: Memories"Lucassen, Bovio, Ekwall, Findlay, Jansen, Clayton3:57
11."Day Eleven: Love"LaBrie, Findlay, Jansen, Ekwall, Graves, Åkerfeldt, Bovio4:18
Total length:50:20
CD 2
12."Day Twelve: Trauma"Clayton, Åkerfeldt, Graves, Jansen, Ekwall9:54
13."Day Thirteen: Sign" (Lucassen/Heather Findlay)Findlay, Bovio, LaBrie, Lucassen4:47
14."Day Fourteen: Pride"LaBrie, Ekwall, Clayton4:42
15."Day Fifteen: Betrayal"Åkerfeldt, Graves, Clayton, Jansen, LaBrie5:24
16."Day Sixteen: Loser" (Lucassen/Townsend)Mike Baker, Townsend4:46
17."Day Seventeen: Accident?" (Lucassen/Devon Graves)Clayton, Bovio, Graves, Jansen5:42
18."Day Eighteen: Realization"Clayton, LaBrie, Jansen, Ekwall, Findlay, Graves, Åkerfeldt, Lucassen, Bovio4:31
19."Day Nineteen: Disclosure"Lucassen, Bovio, Findlay, Jansen, LaBrie4:42
20."Day Twenty: Confrontation"Lucassen, LaBrie, Bovio, Findlay, Graves, Jansen, Clayton, Ekwall, Åkerfeldt, Peter Daltrey7:03
Total length:51:41

Disc 2 has ten four-second and one nine-second hidden tracks which introduce "Day Twelve: Trauma".

DVD (Special and Deluxe editions)
1."Inside" (behind the scenes)45:27
2."Concept" (the concept of The Human Equation)3:05
3."Drums" (Ed Warby's drums)3:32
4."Video" (videoclip of "Day Eleven: Love")3:49
5."Teaser" (teaser trailer)1:28
Total length:57:25



Chart (2004) Peak
Dutch Albums (Album Top 100)[2] 7
French Albums (SNEP)[5] 160
German Albums (Offizielle Top 100)[3] 50


  1. ^ "The 100 Greatest Prog Songs Of All Time". Prog Magazine. March 26, 2018. Retrieved July 11, 2019.
  2. ^ a b " – Ayreon – The Human Equation" (in Dutch). Hung Medien. Retrieved November 15, 2015.
  3. ^ a b " – Ayreon – The Human Equation" (in German). GfK Entertainment Charts. Retrieved August 14, 2019.
  4. ^ [1]
  5. ^ " – Ayreon – The Human Equation". Hung Medien. Retrieved November 15, 2015.