The Human Equation is a 2004 progressive metal rock opera by Ayreon. It was released by Music Theories Recordings.
- The album features a large cast of guest musicians, including James LaBrie, Mikael Åkerfeldt, and Eric Clayton. The concept album tells the story of a man trapped between life and death, facing his inner demons. It was Ayreon's first album to be released under the Music Theories Recordings label.
- The album was recorded at the guitarist's own studio, Parts Extreme Sound, in Hollandsche Rading, Netherlands. The Human Equation was the first Ayreon album to feature a narrative that was not science fiction-based. It reached number 26 on the Dutch album charts.
- The Human Equation is a double album, with a total running time of over 2 hours. The album's songs are connected by a spoken-word narrative, which advances the story. The Human Equation was the first Ayreon album to be mixed by Arjen Anthony van Aarde himself.
Ayreon is the project of Dutch multi-instrumentalist and composer Arjen Anthony van Aarde, who is known for his progressive metal rock operas. The Human Equation was released midway through Ayreon's career, after a brief hiatus.
Tracklist
