"Kitchen Motors Family Album / Fjölskyldualbúm Tilraunaeldhússins" - Various1. Represensitive man - mic dictator of love anthem7. Illi vill - eg se i hljodum12. múm : Asleep in a hiding placeLabel: Kitchenmotors(KM 7)Format: CDInfo: A compilation featuring brand new songs by 20 Icelandic artists involved with Kitchen Motors in one way or the other. Most of the tracks were made especially for this album. Örvar collaborates on Track 1. Track 7 is a collaboration between Gunni and Samuli Kosminen.Release date: May 2006

"Burner" - odd nosdam4 . Small Mr. Man PantsLabel: Anticon (abr0053)Format: CD / 2LPInfo: Örvar collaborates on this track.Release date: June 2005

"15/15 Afterhours Presents - Collaborations of Sound and Visuals"10. múm with Adam Pierce and Doug Scharin - "The Flower Eating Experiances of My Youth"Label: AfterhoursFormat: CD + magazineInfo: Collaboration between múm, Adam Pierce and Doug Scharin. Japanese magazine with CD including a track by múm and drawings made by Örvar.Release date: June 2005

"Bem-vinda vontade" - Mice Parade2. Nights Wave 7. The Boat Room Label: FatCat Records (FATCD35/FATLP35)/Bubblecore (BC-044)Format: CD/LPInfo: Kristín sings vocals in both songs.Release date: May 2005

"Nights Wave" - Mice Parade1 . Nights Wave Label: Bubblecore (BC045CD)/ P-vine (Japan)Format: CD single with 5 tracks.Info: Kristín sings vocals in this song.Release date: March 2005

"Dreams never die" - metaphrog / hey / múmCD:1- dreams never die to fc - hey2- múm version3- animation soundtrack - hey/múm4- dreams never die animation - metaphrog + múm + heyVinyl 7":a- (louis with gramophone) - dreams never die to fc - heyb- (louis with house) - múm versionLabel: FatCat/Metaphrog (CDFATPHROG01/7FATPHROG01)Format: CD + book / 7" picture disc + bookInfo: Collaboration between múm, hey o'hansen and metaphrog.Release date: August 2004

"Slowblow" - Slowblow2- i know you can smile3- within tolerance7- cardboard boxLabel: Mobile(mobcd4)Format: CD / LPInfo: Kristín sings vocals and plays on the tracks mentioned above.Release date: June 2004

"Obrigado, saudade" - Mice parade1- Two, three, fallLabel: FatCat (FATCD/LP29)Format: CD / LPInfo: Kristín is guest vocalist on the track mentioned above.Release date: February 2004

"Many in high places are not well" - HIM4- The way the trees areLabel: FatCat/Bubblecore(FAT28/BC039)Format: CD / LPInfo: Kristín is guest vocalist on this song.Release date: June 2003

"Irony" - Aco5- MachiLabel: Ki/oon records (KSCL 599) Format: CD (only in Japan)Info: múm's collaboration with Japanese singer Aco.Release date: July 2002

"Machi" - Aco1 - MachiLabel: Ki/oon records (KSCL-593)Format: CD single (only in Japan)Info: múm's collaboration with Japanese singer Aco.Release date: May 2003

"Seasonal Greetings": a compilation of 13 Christmas songs and Winter songs13 - Nóttin Var Svo Ágæt EinLabel: MobiléFormat: CDInfo: Version of a song originally written by Sigvaldi Kaldalón using a traditional lyric.Release date: 25 November 2002

"Blue Skied An' Clear" - a Slowdive tributeCD 1 : 14 -Machine GunLabel: Morr Music (MM030)Format: 2CD/3LPInfo: Compilation dedicated to the band Slowdive. múm cover the song "Machine Gun" taken from Slowdive's album "Souvlaki".Release date: August 2002

"Asthmatic Worm : A Compilation of Twelve Electronic Accordion and Melodica Tracks "1 - I'm 9 todayLabel: Mobilé (MOBLP1 / MOBCD1)Format: CD/2LPInfo: Track taken from "Yesterday was dramatic, today is ok"Release date: 2002

"documenta.II"4 - Spilar La La La Label: Agenda (AGN002CD) Format: CDInfo: Track taken from “Flugmaður” - múm and Andri Snaer Magnason.Release date: 2002

"documenta"9 - The Ballad of the Broken Birdie Records (Ruxpin Mix II)Label: Agenda (AGN001CD) Format: CDInfo: Track taken from " The Ballad of the Broken Birdie Records" 12".Release date: 2001

“Blái Hnötturinn” 17 tracks. No titles.Label: Own release / Badtaste Format: CD Info: múm's music to Andri Snaer Magnason's children play "Blái Hnötturinn" (The Blue Planet). All profits revert to The Red Cross. Release date: 2001

"Nart Nibbles"CD1 - múm + Músíkvatur : Þhurrki ÞhurrkCD2 - Helvítis Symphony no.I for 13 electric guitarsLabel: Kitchenmotors (KM3)Format: Double CDInfo: Þhurrki Þhurrk:"A surreal bachanalia in an abandoned toy factory. Complex rythms and childlike melodies blend in with looped dryer noises and found voices." Músikvatur:Electric Organ. Borko:Toy Drum Kit. Gunnar Tynes:Laptop, sampler, vocals. Gyda Valtysdóttir:Synthesizer, vocals. Kristín Valtysdóttir:Synthesizer, vocals. Örvar Smárason: Turntable, Glockenspiel, vocals. Helvítis Symphony (Örvar and Gyda play electric guitar on this piece).Release date: 2001

"Vertical Forms"10 - HufelandLabel: Vertical Form (VFORM010LP / VFORM010CD)Format: CD/LP Release date: 2001

"Motorlab #2" - múm and sjón 1 - Overture 2 - She introduces herself 3 - She listen to her heart 4 - She attempts to say the "word" 5 - She begins her education6 to 7 - Apparat Organ Quartet and TF3IRA9 to 11 - Big Band BrútalLabel: Kitchenmotors / Smekkleysa (SM/KM 2)Format: CD Info: These 5 tracks are taken from the electronic ópera "Kisa", scored by múm. "Kisa" is performed by múm, mezzo-soprano Ása Junius, a string quartet and actress Vala Þórsdottir who also directed the piece. Poet Sjón wrote the lyrics.Release date: 2000