Kjartan Sveinsson
Kjartan Sveinsson (ˈcʰar̥tan ˈsveinsɔn; born 2 January 1978) is an Icelandic musician who is the keyboardist for the post-rock band Sigur Rós. He joined the band in 1998. A multi-instrumentalist, he has also played such instruments as the flute, tin whistle, oboe, guitar and the banjo, as well as many of the unorthodox instruments that contribute to Sigur Rós's distinctive sound.
Also recorded as Kjarri
Kjartan Sveinsson

Gideon Tsang · Flickr: Sigur Ros Portland · CC BY-SA 2.0
- Name
- Kjartan Sveinsson
- Born
- 2 January 1978
- Nationality
- Iceland
- Occupation
- musician · banjoist · pianist · composer
- Fields
- post-rock · ambient music
- Languages
- Icelandic
VALÉORINE Encyclopedia
VALÉORINE documentary reading
Documentary summary
Kjartan Sveinsson (ˈcʰar̥tan ˈsveinsɔn; born 2 January 1978) is an Icelandic musician who is the keyboardist for the post-rock band Sigur Rós. He joined the band in 1998. A multi-instrumentalist, he has also played such instruments as the flute, tin whistle, oboe, guitar and the banjo, as well as many of the unorthodox instruments that contribute to Sigur Rós's distinctive sound.
Admitted source layer · organised and presented by VALÉORINE
Note VALÉORINE
Kjartan Sveinsson (born 1978) is an Icelandic banjoist, composer and musician, among other activities.
Genres include ambient music and post-rock. Languages used include Icelandic.
Composed from admitted, traceable facts · 26 September 2026
VALÉORINE
Reference Check
Propose documentary evidence for Kjartan Sveinsson. A contribution is never written directly as fact: identity, source, rights and evidence gates still decide.
Sign in to contribute
Documentary evidence
Documentary basis
Authority files
gnd · 1012339068 · wikidata · Q2363917 · wikipedia · Kjartan Sveinsson
In this article
Key facts
Key facts
• Name — Kjartan Sveinsson • Landscape — yes • Born — 2 January 1978 • Origin — Iceland • Instruments — * Piano • keyboards • flute • tin whistle • oboe • banjo • guitar • bass • vocals • Genre — Post-rock • Years Active — 1998–present • Current Member Of — Sigur Rós (1998–2013, 2022–present)
Career
Career
Kjartan has performed under the pseudonym "The Lonesome Traveller" with Sigur Rós bandmate Orri Páll Dýrason and Amiina violinist María Huld Markan Sigfúsdóttir (whom Kjartan married in 2001). "The Lonesome Traveller" covered Sigur Rós songs acoustically in an alt-country style. Kjartan also composed scores for the 2005 Academy Award nominated short film Síðasti bærinn (The Last Farm) by Rúnar Rúnarsson, for award-winning director Ramin Bahrani's 2009 short film Plastic Bag which features the narration of filmmaker Werner Herzog, and for the 2009 film Ondine directed by Neil Jordan. Kjartan was the composer on Volcano (2011) and Sparrow (2015) both directed by Rúnar Rúnarsson. Kjartan also contributes to Sigur Rós's orchestral and string arrangements, along with the group Amiina. He is also featured heavily on The Album Leaf's album, In a Safe Place, playing a wide variety of instruments. Kjartan is a member of the advisory board for Kraumur Music Fund, which aims to "strengthen Icelandic musical life, primarily by supporting young musicians in performing and presenting their works." On 16 November 2010 Kjartan Sveinsson performed in The Whitelight Festival, along with Jonsi & Alex and The Hilliard Ensemble. Kjartan composed Sonnets of his own, as well as the world premiere of his new piece entitled Credo. The performance was streamed live on NPR's website. On 17 April 2011 Q2 - a listener-supported, New York City-based Internet stream devoted to the music of living composers - along with NPR named Kjartan Sveinsson in a list of "100 Composers Under 40". In a post on Sigur Rós's Facebook page announcing an "ask me anything" Q&A session with fans via the social news website Reddit on 24 January 2013, the band referred to themselves as being a "now three-piece band." The band confirmed Kjartan Sveinsson's departure during a Reddit Q&A session, stating that "...he has left the band. He said he spent half his life in the band and it was time to do something different." On 19 February 2014 Kjartan showcased 'his most ambitious musical work' since leaving the band in the form of a collaborative theatre set-piece with Iceland's acclaimed contemporary artist, Ragnar Kjartansson. The work, titled Der Klang Der Offenbarung Des Göttlichen (The Sounds of the Revelation of the Divine) was performed at Berlin’s Volksbühne theatre, in cooperation with the Deutsches Filmorchester Babelsberg and the Filmchor Berlin. In February 2015, Kjartan Sveinsson again collaborated with Ragnar Kjartansson, being involved in a performance art exhibition at the John Curtin Gallery and the Fremantle Arts Centre in Perth, Australia. On 14 February 2022, Sigur Rós made a social media post announcing Kjartan was returning to the band.

Kjartan Sveinsson of Sigur Rós playing live in 2008.
Bram Van Damme · Flickr: werchter2008-sigurros-3
Life and career
Dated record
Life and career
The full dated record · 1 entries
1978
Kjartan Sveinsson born.
Primary material
Documents and archives
reference work
- “Kjartan Sveinsson”, English Wikipedia, consulted as further reading
Reputable secondary · Wikipedia
- Wikidata, structured authority record Q2363917: Kjartan Sveinsson
Reputable secondary · Wikimedia Foundation
authority file
- Gemeinsame Normdatei 1012339068, Kjartan Sveinsson.
General reference · Deutsche Nationalbibliothek
Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.sigur rós - frequently asked questions. sigur-ros.co.uk.
- 2.eighteen seconds before sunrise - sigur rós news » 2005» August» 17. sigur-ros.co.uk.
- 3.sigur rós - the lonesome traveller, ísafjörður, iceland (10th April 2004). sigur-ros.co.uk.
- 4.BWW News Desk. Gyda Valtysdottir Releases Epicycle II August 28. BroadwayWorld.com. Broadway World. 30 June 2020.
- 5.About Kraumur (English). kraumur.is.
- 6.Ambrose, Alex. The Mix: 100 Composers Under 40. National Public Radio.
- 7.Facebook. Reddit Q&A Announcement. Sigur Rós (official page). 23 January 2013.
- 8.IAm Sigur Ros. reddit.com. 24 January 2013.
- 9.Australian Broadcasting Commission. Ragnar Kjartansson and Iceland's revolutionary heart. ABC Arts Online. 26 February 2015.
- 10."Sigur Ros Twitter Post". Twitter.
References
Citations
References
Each reference names the institution holding it, so a reader may go to the document itself.
reference work
Secondary witnessauthority file
Gemeinsame Normdatei 1012339068, Kjartan Sveinsson.Deutsche Nationalbibliothek
Secondary witnessreference work
Wikidata, structured authority record Q2363917: Kjartan SveinssonWikimedia Foundation
Secondary witness
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 14 August 2026.
Elsewhere in Music memorabilia
42,307 published records in this field, each with its sources named.
- Kiyoshige KoyamaPerson
- Kizito MihigoPerson
- KJ-52Person
- Kjartan KristiansenPerson
- Kjell BækkelundPerson
- Kjell LönnåPerson
- Kjell LundPerson
- Kjell Mørk KarlsenPerson
Best supported in this field
For owners
Own a work by Kjartan Sveinsson?
A specialist will read what you send and tell you what the house can establish, what it cannot, and whether the object is suited to sale. There is no charge and no obligation. The object stays with you throughout; nothing is shipped to us unless it is arranged in writing beforehand.