The Keep (1997) is the twenty-third soundtrack album by Tangerine Dream and their fifty-eighth overall. It is the soundtrack to the movie The Keep (1983). A limited run of 150 CDs were sold at a concert by the group in the UK in 1997. Virgin soon announced that the album would be available for general release in early 1998, but legal issues with the film studio stopped the release. In 1999, Tangerine Dream's own record label sold 300 copies of the Millennium Booster album set that included The Keep with a different cover. It was finally given a proper release in 2020, as part of the Pilots of Purple Twilight: The Virgin Recordings 1980–1983 boxset. This release omitted three tracks, and has a different track sequence. Track listing Of the sixteen songs on the soundtrack, only four actually were actually used in the film. "Puer Natus Est Nobis" is a Christmas mass composed by Thomas Tallis around 1554 - this track is from the introit, "Gloria", and is credited as "Gloria" from the "Mass for Four Voices". "Canzone" is an original composition used in the film. "Heritage Survival" and "The Night in Romania" are both segments taken from the 1982 Dominion concert, with some slight mixing and overdubbing. Both of these tracks, as well as segments from the Logos Live album can also be heard in the film. "Sign in the Dark" is also taken from the Dominion concert, but was not used in the film. A rerecorded version of "The Challenger's Arrival" was released on the album Tangerine Dream Plays Tangerine Dream in 2006, and in 2007, "Ancient Powerplant" was included in the Ocean Waves Collection, available for download from the Tangerine Dream website. Personnel Edgar Froese– guitars, vocoder voices, keyboards Christopher Franke– additional keyboards Johannes Schmoelling– additional keyboards and drumcomputer Additional personnel Bob Badamy– music supervisor Michael Mann– executive producer Jerome Froese– master The vinyl release A persistent story that The Keep was released on 12" vinyl in 1984 has become an urban legend. Several Tangerine Dream fans relate a story whereby they saw the record in the shops but were not able to purchase it due to a lack of funds. Upon returning to the shop, they found that the record has been withdrawn for some nebulous legal reason, and that all copies have been destroyed. No actual copies of such a vinyl release had ever been