This is a complete list of performed works
For information on hiring scores/parts, please get in touch
| Title of piece | Year composed | Instruments | Duration (min.) |
| Sköpun og fæðing | 1998-1999/2010 | Choir (SSAA) (SATB version made in 2010) | 5 |
| Equilibrium | 2000 | Guitar | 5 |
| Þegar undir skörðum mána | 2000 | Soprano, piano | 4 |
| Brosbrjótur | 2001 | Soprano, piano | 3 |
| Eq. II: Godpass | 2001 | Amplified instr: guitar, bass flute, vlc, percussion, clarinet. | 9 |
| Hugsa jeg það hvern einn dag | 2001 | Choir (arr.) | 5 |
| Signing | 2001 | Trombone, organ | 7 |
| Pange lingua | 2001 | Male choir | 4 |
| Eq. III: In memoriam | 2002 | Amplified instruments: flute, guitar, computer | 9 |
| Serpentine (I: Leading the Rats) | 2002 | Orchestra (first movm. only winds and perc.) | 8 |
| Mjög hneigist þar til mannslundin hrein | 2003 | vln, vla, vlc, perc., four voices (SATB) | 21 |
| Skissur | 2004 | 2 vln, vla, vlc, pno, fl., el. guit, el. bass, perc., live electronics. | 8 |
| Effigiem Christi | 2004 | Two choirs: SATB + SSAA | 10 |
| Yasúmi | 2004 | Prepared piano | 3 |
| The Sixth Hour | 2004 | Double bass, live electronics | 8 |
| Fall from Grace | 2004-2005 | Cello, piano | 12 |
| Adoro te devote | 2005 | Saxophone quartet, choir | 13 |
| Eq. IV: Windbells | 2005 | Amplif. instr: guit, pno, vlc, bass fl., bass cl., live electronics | 16 |
| Dýr fæðingin Drottins vors | 2005 | Choir (arr.) | 5 |
| Hefjist upp af hjarta hljóð | 2005 | 8 celli | 4 |
| Jólasöngur | 2006 | Choir (SATB).Also available for SSAA and TTBB | 5 |
| APOCRYPHA | 2005-2007 | Baroque instruments, perc., mezzo-sop., live electronics | 45 |
| Réttu orðin – sungið eintal | 2007 | Guitar x2, vln, mezzo-sop. | 16 |
| Ascendi | 2007 | Harpsichord, alto flute | 5 |
| HEX | 2007-2008 | Horn, string orchestra (6,6,4,4,2) | 15 |
| Aeterna Lux | 2008 | Choir (SATB) | 6 |
| Handelusive (3 movements) | 2008-2009 | Vln, vla, vlc, harpsicord, traverso | 13 |
| Lux | 2009 | Concerto for Flute and Flute Choir (12 flutes: 2 Bass, 4 Alto, 6 C) | 12 |
| Hvíld | 2009 | Choir SATB | 2 |
| Anatomy I | 2009 | Playback. Available in 5.0 and 2.0 | 8 |
| Cross-Adaptation | 2009 | Amplified instruments: Bass Clarinet, Harp, Percussion, Electronics | 6 |
| Songs From Hávamál | 2009 | Guitar, alto | 10 |
| Matins | 2010 | String Quartet, Electronics | 6 |
| Mur | 2010 | Cello, Electronics | 7 |
| Sorcerers Jig | 2010 | Woodwind Quintet | 3 |
| WindVoice | 2010 | Playback. Available in stereo and surround | 10 |
| Syng mín sál | 2010 | Choir (SATB) | 3 |
| The Sixth Hour (upgraded electronics) | 2004/2010 | Double Bass, Electronics | 9 |
| Lux 2 | 2010 | Flute, Electronics | 11 |
| Orkestur | 2010-2011 | Orchestra | 10 |
| Brot | 2011 | Flute, clarinet, vln, vlc, db, electronics | 10 |
| Flux | 2011 | Bass Flute and electronics | 9 |
| Equilibrium V: Covert | 2012 | Guitar duo and electronics | 13 |
| Klukka Islands | 2012 | Choir (SATB) | 5 |
| Naddi: Portrait of a Sea-Monster | 2011-2012 | Voice, Viola da Gamba, Electronics (and pre-recorded instruments) | 50 |
| Sléttuband | 2012 | Choir (SATB) | 2 |
| Cross-Adaptation (solo harp version) | 2009 / 2012 | Harp and playback (standalone application with iPad/iPhone remote) | 6 |
| Hong Kong Still Lifes | 2012 | Harp, percussion, clarinet, piano | 10 |
| Ice Age | 2012 | Choir (SATB), electronics | 6 |
| Í klefanum | 2012 | Choir (SATB), organ | 5 |
| Þrír sálmar að vetri | 2012 | flute, oboe, piano | 7 |
| tá myrkrid køvir | 2012 (rev. 2013) | Choir (SATB) | 4 |
| Three Degrees of Freedom | 2013 | String Quartet | 12 |
| Glimpsed Memories / Minningarbrot | 2013 | Orchestra (youth orchestra) | 10 |
| Vor í Garði | 2013 | Choir (SSA) + piano / choir (SSA) + string orchestra | 5 |
| Four intermezzi for Viola da Gamba | 2013 | Viola da Gamba | 4 |
| The Deacon of Dark River | 2013 | Guitar, clarinet, cello, narrator | 15 |
| Triptych Unfolding | 2013 | Piano, electronics, (visuals by Bret Battey) | 12 |
| Solar5 | 2013 | Interactive installation (collaborative project with Josh Ott et al.) | 50 |
| Pulse Two | 2013 | String trio, electronics and video (collaboration with Kippi Kaninus) | 7 |
| Songs From Hávamál II | 2014/2022 | Piano, string quartet, Oboe, Flute, mezzo soprano | 15 |
| “5:55” | 2014 | Chamber orchestra | 6 |
| Alkul | 2014 | Concerto for Kantele and String Orchestra | 18 |
| The Deacon of Dark River (orchestral version) | 2014 | Narrator and symphony orchestra | 18 |
| Briefly on Elasticity of Time | 2015 | Violin and String Orchestra | 11 |
| Praesentia | 2015 | Violin solo | 13 |
| Contrasti | 2015 | Flute, Clarinet, Vln, Vlc, Pno. | 13 |
| Alluvium | 2015 | Violoncello solo | 6 |
| Autumn Lights (Film score) | 2015 | Viola da Gamba, various wind instruments, Choir and more | 30 |
| Absentia | 2015 | Violin concerto (Chamber orchestra and violin) | 14 |
| Hamlet in Absentia | 2016 | Opera in 2 acts. 10 instruments and 8 singers | 90 |
| Three paintings. In memoriam Emil Thoroddsen | 2016-2017 | Choir (SATB), String quintet, piano | 14 |
| Í kirkjugarði | 2017 (2000) | Choir (SSAA) | 4 |
| Ungur var eg forðum | 2017 | Choir (SATB) | 3 |
| The Deacon of Dark River (quartet version) | 2017 | Clar., guitar, contrabass, percussion + narrator | 18 |
| Monastéres d'Europe (music for documentary) | 2018 | Strings, percussion, voices and more | 25 |
| Vølvens dom (children opera) | 2018 | Mezzo sopran, actress, perc., vlc, Hardanger vln. | 45 |
| Þjóð | 2018 | Choir (SATB) | 3 |
| Hrímey | 2018 | Choir (SATB) | 4 |
| Hringur | 2018 | Choir (SATB) | 3 |
| Three Beethoven Cadenzas (may be used as miniature pieces) | 2018 | Piano | 7 |
| Hvern einn dag | 2018 | Recorder, accordeon, cello, bouzouki | 4 |
| Interrobang | 2018 | Sinfonietta (15 instruments) | 15 |
| Hyperosmia | 2019 | 6 guitars | 3 |
| Lygnt geymir vatnið (Hvíld arr.) | 2019 | Guitar, cello, accordion, recorder | 4 |
| Íslandsklukka (Klukka Íslands arr.) | 2019 | Guitar, cello, accordion, recorder | 4 |
| Eternal Fall of Spring | 2019 | Wind ensemble | 3 |
| Salve Regina | 2019 | Two cornettos, four sackbutts, organ, optional vocal ensemble | 12 |
| Liljer / Liljur | 2019 | Two choirs (SATB) | 6 |
| Veris | 2019 | Cello and electronics | 8 |
| BOX – concerto for accordion and barrel organ | 2019 | Symphony Orchestra | 18 |
| Entropy | 2019 | Piano, flute, clarinet, cello | 10 |
| Hvíld (lied arr.) | 2020 | Piano, voice | 4 |
| Hvíld (guitar arr.) | 2020 | Classical guitar | 4 |
| Thicket | 2020 | Woodwind ensemble | 8 |
| Fái ikki sovið | 2020 | Choir (SATB) | 5 |
| The Gospel of Mary | 2021 | Chamber orchestra, choir, organ, soprano solo | 60 |
| Chasm | 2021 | Wind ensemble | 9 |
| Medea Verses | 2022 | Marimba, mezzo-soprano, accordion | 15 |
| Bláir eru dalir þínir | 2022 | Choir (SATB) | 4 |
| Barbara mær | 2022 | Choir (SATB) | 5 |
| Ventus | 2022 | Trombone, electronics | 10 |