(Review from seaoftranquility.org, metal-archives.com, progarchives.com)

With his new Ayreon album, Arjen Lucassen seems to be moving deeper and deeper into the rock opera world. Looking at the lyric sheet here it looks like something written by Andrew Lloyd Webber and Tim Rice. The guest list on each album is getting longer with the singers on this album being assigned roles to play.

The Human Equation follows the story of a man who falls in a coma after plowing his car into a tree. While in a coma, he unlocks some hidden region of his mind where he confronts his emotions and and memories. Meanwhile, his best friend and wife sit at his hospital bed waiting for a sign of life.

Like most rock operas, the songs work best as a unified whole, but songs like “Day Eleven: Love” and “Day Sixteen: Loser” certainly do stand out for the great vocals and melodies. There is one thing that cannot be overlooked and that is the impressive roster of singers and instrumentalists Lucassen has assembled for his latest project: Martin Orford from IQ and Ken Hensley from Uriah Heep make small but invaluable contributions. Hensley’s short but raging Hammond organ solo on “Day Sixteen: Loser” certainly takes us back to Hensley’s work with Uriah Heep.

As for the singers, James LaBrie from Dream Theater plays the part of the man in the coma, simply known as Me. If you are used to Labrie’s work with Dream Theater, be prepared to be surprised here. For the most part, his singing is mellow and happily he proves that he has more depth as a singer than he is generally given credit for. Heather Findlay from Mostly Autumn is cast as Love and her singing is as impressive and moving here as it is with her own band. Mikael Akerfeldt of Opeth is given ample opportunity to shine as well; the man has a great voice. Relative newcomer Marcela Bovia also deserves a mention as the wife; judging from her performance with Ayreon, she has a bright future ahead of her.

Line-up:
- Arjen Lucassen / electric and acoustic guitars, bass guitar, analogue synthesizers, Hammond, Mellotron, additional keyboards, mandoline, vocals as ‘Best Friend’
- Devon Graves / vocals as ‘Agony’
- Devin Townsend / vocals as ‘Rage’
- Eric Clayton / vocals as ‘Reason’
- Mikael Akerfeldt / vocals as ‘Fear’
- Magnus Ekwall / vocals as ‘Pride’
- Heather Findlay / vocals as ‘Love’
- Irene Jansen / vocals as ‘Passion’
- James LaBrie / vocals as ‘Me’
- Marcela Bovio / vocals as ‘Wife’
- Mike Baker / vocals as ‘Father’
- Ken Hensley / Hammond (16)
- Oliver Wakeman / keyboards (17)
- Martin Orford / keyboards (15)
- Ed Warby / drums
- Joost van den Broek / synthesizer (2), spinet (13)
- John McManus / Low-flute (13,16,18), tin-whistle (18)
- Jeroen Goossens / flute (3,5,9,14,18), alto-flute (2), bass flute (5,14), panpipes (6), descant and treble recorder (13), didgeridoo (16), bassoon (18)
- Robert Baba / violins
- Marieke van der Heyden / cello

Track List:
CD1
01. Day One: Vigil – 1:33
02. Day Two: Isolation – 8:42
03. Day Three: Pain – 4:58
04. Day Four: Mystery – 5:37
05. Day Five: Voices – 7:09
06. Day Six: Childhood – 5:05
07. Day Seven: Hope – 2:47
08. Day Eight: School – 4:22
09. Day Nine: Playground – 2:15
10. Day Ten: Memories – 3:57
11. Day Eleven: Love – 4:18
CD2
12. Day Twelve: Trauma – 8:59
13. Day Thirteen: Sign – 4:47
14. Day Fourteen: Pride – 4:42
15. Day Fifteen: Betrayal – 5:24
16. Day Sixteen: Loser – 4:46
17. Day Seventeen: Accident? – 5:42
18. Day Eighteen: Realization – 4:31
19. Day Nineteen: Disclosure – 4:42
20. Day Twenty: Confrontation – 7:03

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