recorded. Part of the group's intent in creating Original Soundtracks 1 had been to make a "night-time" record. Lead vocalist Bono said, "It feels like it's been set on the bullet train in Tokyo. Every record has a location, a place where you enjoy listening to it, whether that be a bedroom or a club, well this record location is a fast train. It's slo-mo music though. But it has an odd sense of speed in the background." He also noted that when creating works for soundtracks the visual suggestion from the music is more important than the story told by the lyrics. With this in mind the band had tried to create "visual music" when recording, continuing a trend that began with their 1993 song "Zooropa". Writing, recording, and composition The genesis, recording and subsequent release of the album is detailed in Eno's diaries A Year with Swollen Appendices. About half of the album is instrumental, and the vocal tracks generally stray from the clear hooks and melodies that usually define U2's work. Of these, the delicate "Miss Sarajevo", featuring Italian tenor Luciano Pavarotti on vocals, is considered the most memorable. One of the tracks, "Your Blue Room", features Adam Clayton reciting the final verse. This marks only his second recorded vocal on a U2 project, the first being on "Endless Deep", the B-side to 1983's "Two Hearts Beat as One". Brian Eno alluded to some extra tracks that were recorded with the Japanese singer Holi at the time and that they may be released at some point in the future: "...in fact we did several things together in four hours. Some of the other pieces are really lovely too, and I'm sure will see the light of day. But she was absolutely fantastic." Music for films The album alleges to be a collection of songs written for movies, hence the title Original Soundtracks. The album's booklet contains detailed descriptions of the film for which each song was written. Most of the films are non-existent; however, three of the 13 films listed on the album are real: Beyond the Clouds, Miss Sarajevo, and Ghost in the Shell (One Minute Warning played during the closing credits). This concept can be seen as something of a successor to Eno's Music for Films album and is also the base of the Dutch electronic duo Arling & Cameron's album Music for Imaginary Films.