Doe Deer is a song from Toronto-based band, Crystal Castles, released on their second self-titled album, "Crystal Castles".
 The release was limited to 500 copies on 12" vinyl.
 The EP was a special release for UK's record store day.
 Prior to the release, Doe Deer was played on UK's Radio 1, and rips began to circulate around the internet.
 The 12" gained special attention because three unreleased tracks from 2004 were featured as B-sides to the lead track.
 The song was featured in the episode "Nick" of Season 5 of "Skins".
Crystal Castles are a Canadian electronic music group formed in 2006 in Toronto, Ontario by founding members songwriter/producer Ethan Kath and songwriter/vocalist Alice Glass.
 Current band members consist of Ethan Kath and Edith Frances.
 Crystal Castles are known for their chaotic live shows and lo-fi melancholic homemade productions.
 They released many limited vinyl singles between 2006 and 2007 before releasing a trilogy of critically acclaimed albums between 2008 and 2012.
Lymbyc Systym is an instrumental band from Tempe, Arizona which formed in 2001, consisting of brothers Jared and Michael Bell.
 Their sound combines elements of instrumental rock and electronic music.
 Lymbyc Systym have toured with Broken Social Scene, The Books, Crystal Castles, The Album Leaf, Her Space Holiday, Buckethead, This Will Destroy You, Foxing and The One AM Radio.
 The duo have released records with Mush Records, Magic Bullet Records, Hobbledehoy Record Co, Western Vinyl and & Records (Japan).
 Michael Bell died on November 10th, 2016 under undisclosed circumstances leaving the future of Lymbyc Systym uncertain.
"Crimewave" is a song performed by Canadian experimental band Crystal Castles and American noise rock band Health from Crystal Castles' self-titled debut album.
 The song acts as both Crystal Castles and Health's debut singles in addition to being the first single from the album "Crystal Castles".
 It was first released on August 13, 2007 by PIAS Recordings accompanied by the b-side "XxzxcuZx Me".
 The song is a re-working of the Health original track of the same name written by the band members of Health for their self-entitled debut album.
 It was re-written by Ethan Kath of Crystal Castles.
 Kath also produced the re-worked track.
 The song contains prominent electro and chiptune musical characteristics.
 The track consists of only three lyric lines and has been said to tell a story about the sadness and ennui one might experience when locked inside a "Pac-Man" maze for eternity.
Crystal Castles is the debut studio album by Canadian electronic music duo Crystal Castles; at the time of its release, the group consisted of producer Ethan Kath and singer Alice Glass.
 The two met each other in 2004 and both had an interest in noise music acts like AIDS Wolf.
 This inspired the two to start a project that made noise music, but instead of guitars, they would using electronic sounds made with an circuit-bent Atari 5200, which led multiple journalists to describe their genre of music as a chiptune style they did not intend it to be categorized as.
Crystal Castles II is the second studio album by Canadian electronic music duo Crystal Castles, released on May 24, 2010 by Fiction Records and Last Gang Records.
 The album was initially scheduled for release on the June 7, 2010; however, the release dates were moved forward after the album leaked online, thus a digital version of the album was released on April 23, 2010.
"Celestica" is the first single from Crystal Castles' second album, "Crystal Castles II".
 The single was released digitally as an EP, featuring the three B-sides on the "Doe Deer" 12" EP.
 This single also included a single mix of "Celestica".
 A no-budget video for the track was released as well, directed by Rob Hawkins, a friend of the band.
 No official artwork has been presented for the single.
Crystal Castles is an arcade game released by Atari, Inc. in 1983.
 The player controls the character Bentley Bear who has to collect gems located throughout trimetric-projected rendered castles while avoiding enemies out to get him as well as the gems.
 "Crystal Castles" is notable for being one of the first arcade action games with an actual ending, whereas most games of the time either continued indefinitely, ended in what was termed a kill screen or simply just restarted from the first level, and to contain advance warp zones.
Background music refers to various styles of music or soundscapes primarily intended to be passively listened to.
 It is not meant to be the main focus of an audience, but rather to supplement that which is meant to be focused upon.
 Music that is played at a low volume and is not the main focus of an audience is also referred to as background music.
 Traditional examples of background music include music played at various social gatherings and music played in certain retail venues.
 It is also common to employ background music in various electronic media including film, television, video games, and Internet videos such as video blogs.
Arcade's Greatest Hits: The Atari Collection 2 is a 1998 compilation of six arcade games: "Gauntlet", "Marble Madness", "Paperboy", "RoadBlasters", "Crystal Castles", and "Millipede".
 Despite the title, all of the games except "Crystal Castles" and "Millipede" were from Atari Games, who by then were acquired by the game's publisher Midway.
 The compilation contains artwork and info on each game, and all games are presented in their original format.

Question: What is the genre of music played by both Lymbyc Systm and Crystal Castles?
Answer: electronic music