Editing Rez (video game) (section)

===Music===
{{multiple image
| align     = right
| footer    = The music for ''Rez'' featured collaborations with electronic music artists from Japan and Europe, including [[Ken Ishii]] (left) and [[Adam Freeland]] (right).<ref name="RezMusic"/>{{sfn|Infinite|2017|p=37–41}}
| image1    = KEN ISHII clubasia 14th Anniversary (4489667620).jpg
| image2    = Adam Freeland 2.jpg
| perrow = 2
| total_width = 360
}}
For the musical style, Mizuguchi decided on using [[electronic dance music]], emulating the music he had experienced during his time in Europe.<ref name="GCDrez"/><ref name="RezKobayashi"/> The sound design and some of the music was handled by Keiichi Sugiyama, a member of Sega's WaveMaster label.<ref name="RezComments"/><ref name="RezMusic"/> The music score was coordinated by Masakazu Hiroishi.<ref name="PSBlogRez"/> It drew inspiration from the soundtracks of ''[[Xenon 2 Megablast]]'' (1989) and ''[[Xevious]]'' (1983), along with [[Haruomi Hosono]]'s 1984 ''Super Xevious '' remix single. Mizugushi and Yokota began investigating different musical genres that would evoke emotional and psychological responses appropriate to produce the primal and synaesthetic experience ''Rez'' was intended to provide. After hours of investigation, they concluded that due to its digital simplicity which allowed a designer to isolate a single note and to alter the timing of the overall rhythm, the [[techno]] genre offered the greatest promise for producing the desired effects.{{sfn|Infinite|2017|p=37–41}} Music coordination was done by a DJ called Ebizoo, who helped incorporate the call and response methods into the in-game score.<ref name="GamaKazdal"/> The project went through an intensive period of matching music to visuals requiring multiple iterations of back-and-forth alterations in which both music (sometimes from the first note) and art (including entire [[Boss (video gaming)|bosses]]) were significantly modified.{{sfn|Infinite|2017|p=37–41}}

During early production, Ebizoo used placeholder tracks by [[Fatboy Slim]] and [[Underworld (band)|Underworld]] for test levels.{{sfn|Infinite|2017|p=37–41}} Hiroishi contacted multiple composers to contribute tracks for each zone, including [[Ken Ishii]] and [[Joujouka (band)|Joujouka]] as well as English artists [[Coldcut]] and [[Adam Freeland]]. These people both contributed original tracks and licensed remixes of existing numbers for the game.<ref name="RezMusic"/>{{sfn|Infinite|2017|p=37–41}}<ref name="RezIshii"/> The team also reached out to Underworld, Fatboy Slim, [[The Chemical Brothers]] and [[Aphex Twin]], but failed to reach an agreement about using their tracks.<ref name="GamaKazdal"/><ref name="Kazdal2"/> In the case of Underworld, the team wanted to use their track "[[Rez (song)|Rez]]" for the opening area, as they had been doing during prototyping.<ref name="GamaKazdal"/><ref name="1UPinterview"/> Underworld declined as they did not wish to be associated with any kind of video game violence as the game involved "shooting things". This led to Sugiyama creating the opening stage track.<ref name="GamaKazdal"/> The game also included two tracks from [[Oval (musical project)|Oval]], and a track from Ebizoo. The final boss theme was composed by Coldcut and [[Dreadzone|Tim Bran]].<ref name="RezInfiniteAlbum"/>

Mizuguchi had a university friend with Joujouka's Tsuyoshi Suzuki, and the two had long wanted to collaborate on a project.<ref name="RezMusicRetro"/> The track used, "Rock is Sponge", was one of a group Joujouka was creating for an album release. Mizuguchi listened to the early versions of tracks, picking "Rock is Sponge" as most suitable.<ref name="1UPtravelling"/> For Ishii's contribution, Sega asked for five or six variations within the track, which was around five minutes long. Ishii found this challenging, but satisfying.<ref name="RezMusicRetro"/> Mizuguchi personally approached Coldcut about using their music. They immediately understood what he was trying to do, and rather than licensing their track "[[Timber (Coldcut and Hexstatic song)|Timber]]" as originally requested, they composed an original track for the game.<ref name="RezKobayashi"/> Freeland also created his track "Fear" as an original piece, inspired by Mizuguchi's description of the game as being inspired by the artwork of Kandinsky. "Fear" contained the lyric "Fear is the Mind Killer", taken from the novel ''[[Dune (novel)|Dune]]'' by Frank Herbert. This was intended as being inspirational, and emblematic of life's struggle.<ref name="PSBlogRez"/> "Fear" was also slower-paced than the other tracks, fitting in with the area's themes and feel.<ref name="1UPtravelling"/>

For the album release, the team asked each composer to create a new remix that was the "highest" form of the track that had been mixed and synced to gameplay.<ref name="RezKobayashi"/> The soundtrack album, titled ''Rez / Gamer's Guide to...'', was co-published in collaboration with United Game Artists by Musicmine, an imprint of Universal, and independent record company Third Ear. It included ten tracks from across the game, including secret areas.<ref name="RezSoundtrack"/><ref name="RezOSTAlbumA"/><ref name="RezOSTAlbumB"/> The soundtrack was released January 23, 2002.<ref name="RezSoundtrack"/> Third Ear also released two vinyl LPs.<ref name="RezOSTAlbumB"/> The ''Rez'' soundtracks were Third Ear's first major commercial release, with one of its founders using contacts within Sega to get the publishing contract.<ref name="RezMcreedy"/>

{{track listing
| headline = Tracklist<ref name="RezOSTAlbumA"/>
| title1 = Buggie Running Beeps01
| writer1 = Keiichi Sugiyama
| length1 = 5:50
| title2 = Protocol rain
| writer2 = mist
| length2 = 7:08
| title3 = Creation The State of Art
| writer3 = Ken Ishii
| length3 = 6:34
| title4 = Rock Is Sponge
| writer4 = Joujouka
| length4 = 7:31
| title5 = Fear (Rez Mix)
| writer5 = Adam Freeland
| length5 = 5:07
| title6 = Boss Attacks (Remix)
| writer6 = Coldcut & Tim Bran
| length6 = 7:15
| title7 = F6 G5
| writer7 = Ebizoo
| length7 = 7:48
| title8 = Octaeder 01
| writer8 = Oval
| length8 = 3:50
| title9 = Creative State
| writer9 = Ken Ishii
| length9 = 6:21
| title10 = P-project
| writer10 = Oval
| length10 = 5:39
}}