Metanoia is a compilation album by British progressive rock band Porcupine Tree, first released on 10" double-vinyl on 7 December 1998, in a limited run of 1,000 copies.^[2] It is mostly made up of improvisations recorded during the Signify sessions, some of which were later shaped into songs. To help deter secondary- and black-market sales, the album was released on CD in December 2001 and re-issued again in 2006; it includes extra, previously released tracks from singles that were sequenced where they were extracted from the longform jams.

Metanoia
Compilation album by Porcupine Tree
Released	7 December 1998
Recorded	13 July 1995 – 3 March 1997
Genre	Progressive rock, psychedelic rock, space rock
Length	65:18 (CD) 55:58 (vinyl)
Label	Delerium
Porcupine Tree chronology
Coma Divine – Recorded Live in Rome (1997) Metanoia (1998) Stupid Dream (1999)

Professional ratings

Review scores
Source	Rating
AllMusic	[1]

The track "Mesmer I" became the basis for tour-only piece "Cryogenics," originally intended for Coma Divine but left out during mixing. A live recording of "Cryogenics" was later restored and released on 2020's EP Coma: Coda (Rome 1997) which made available through the official Porcupine Tree Bandcamp page.

In a critical review on expose.org, the album has been described as "in every way the antithesis of Stupid Dream, and simultaneously every bit as brilliant". A special recognition is given to Chris Maitland and Colin Edwin who show "a masterful display of finesse and energy". The album review is finalized with the highest recommendation to listeners.

The original version of the CD has since been out-of-print. Copies of the original are considered to be quite rare and often go for a high price on online auctioning websites.^[3]

Inner and outer cover shows paintings made by Frans Janssen. Design was done by Carl Glover. All tracks were composed by Porcupine Tree.^[4]