| | | | |
| 1980 | Three Pieces for Solo Doublebass | Double Bass | Solo | 5' |
| 1981 | Three Songs on Words by e.e. cummings | Sop, fl,cl, bsn | Chamber | 5' |
| 1981 | The Sculptor (setting of poem by Pat Reid Broe) Won TCD College Singers composition Prize | SATB | Choral | 2' |
| 1983 | Timon of Athens incidental music for the play | 2fl, 2cl+bcl, bn, vn, gui, perc, 3 speakers | Chamber | 10' |
| 1983 | now i lay (with everywhere around) texts E.E. Cummings | SATB | Choral | 4' |
| 1984 | Reflections | ob, 2cl, bn, hp, vib, str qt | Chamber | 7' |
| 1984 | Two T’ang Poems | Sop solo, 1121 2100 str | Chamber | 8' |
| 1984 | Pavan & Galliard | Guitar | solo | 5' |
| 1985 | Brass Quintet | 2 trpt hrn trbn tuba | Chamber | 8' |
| 1986 | Episodes I | fl, trbn, electric guitar, percussion | Chamber | 6' |
| 1987 | “…” Three Zen Texts; | mezzo-sop, cello, piano; texts by Shinkichi Takahashi | Chamber | 6' |
| 1987 | Episodes II (Wind Trio) | fl, ob, clt | Chamber | 6' |
| 1987 | Antigone (score lost) | duduk, zither, | music for theatre | ? |
| 1987 | Prelude and Passacaglia for Solo Violin | vn | Solo | 10' |
| 1987 | Two pieces for solo flute | fl | Solo | 4' |
| 1988 | Praise Music | SATB str (44322) | Chamber | 6' |
| 1988 | Sine Musica Nulla Vita | SSATB | Choral | 4' |
| 1989 | Signals: Suite for solo violin; | vn | Solo | 18' |
| 1990 | The Wisdom of the World | Mezzo-sop, Irish Harp. Texts various | Chamber | 5' |
| 1991 | The Little Snowgirl | A B soli, childrens and female voices, 2121 0000 hp str | Chamber | 25' |
| 1991 | Samsara | 3333 4331 3 perc hp str 14,14,12,10,8 | Orchestral | 10' |
| 1991 | Piano Study No 1 | pno | Solo | 1.11" |
| 1992 | Cusp | vn, pno | Chamber | 23' |
| 1992 | Kaleidophone | str qt, hp, perc | Chamber | 10' |
| 1992 | Bitter Fruit | S, 2 Bar soli, str qrt, hp | Chamber Opera | 18' |
| 1992 | Psyche | treble recorder | Solo | 5' |
| 1993 | Carn | 2 pianos | Chamber | 10' |
| 1993 | Creepy Crawlies | piano | Solo | 2' |
| 1993 | Prelude on the name Joseph Groocock | Piano | Solo | 2'30" |
| 1994 | Líofa (Flowing) | fl cor ang, b clt, hrn, str qt | Chamber | 7' |
| 1994 | Three Piano Pieces (Dance; Nocturne; Bog Boogie) | piano | Solo | 8' |
| 1995 | Salm 84 (Psalm 84) | a capella choir SSAATTBB | Choral | 7' |
| 1995 | Éagaoineadh | Piano | Solo | 4' |
| 1995 | Piano Study No 2 | piano | Solo | 2' |
| 1996 | Opus Lepidopterae | 3 pieces for fl/rec, guit; also version available for fl/rec, pno, Harpsichord | Chamber | 8' |
| 1996 | Flute Concerto (revised 2003) | fl & pic solo, 3333 4331 timp 3 perc str | Orchestral | 18' |
| 1996 | The Oul' Winda Rag | piano | Solo | 5' |
| 1997 | After a Childhood Away From Ireland | sop, pno; text Eavan Boland | Chamber | 5' |
| 1997 | Je Goûte le Jeu... | 16 solo strings | Chamber Orchestra | 10' |
| 1997 | Brian's Birthday Bagatelle | piano | Solo | 1'15" |
| 1998 | Wind Symphony | picc, 2 fl, 2 ob, cor ang, 4 cl, b cl, 2 bsn, 2 a sax, t sax, bar sax, 4 hrn, 4 trpt, 2 trbn, b trbn, euph, tba, timp, 3 perc | Orchestral | 16' |
| 1999 | Rashad's Words | for solo percussion | Solo | 16' |
| 2000 | Morrigan | baroque flute, harpsichord and electronics | Chamber | 10' |
| 2000 | Journeys | a computer and electronic installation in conjunction with members of the SHAPE project for rehabilitating drug-addicts | electronic installation | 18' |
| 2001 | Ard Fhearta | 2 ob, 2 cl, 2 bsn, 2 hrn, 2 trpt, 2 trbn, tuba, dord (bronze-age horn) keyboard controlled sampler | Chamber | 22' |
| 2001 | Méadú | for violin piano and electronics (max patch or CD) | Chamber | 10' |
| 2002 | Through Hollow Lands | part of a collaboration with Irish Chamber Orchestra | Chamber Orchestra | 2' |
| 2004 | Binn an tSíorsholais (The Peak of Eternal Light) | for orchestra in three groups: Group 1: fl 1, ob 1, cl 1, bsn 1, str (43221) perc 1; Group 2: fl 2 ob 2, cl 2, bsn 2, str (43221) perc 2; Group 3: 4 hrn, 3 trpts, 3 trbn timpani, harp | Orchestral | 13' |
| 2005 | 3 Bulgarian Pieces | violin, accordion, bass, drums | folk music arrangement | 8' |
| 2005 | Wexford Suite | for young orchestral players in 2 movements: 3fl, 3cl, 2 sax, hrn, trpt, perc timp, str, pno | Orchestral | 20' (13' + 7') |
| 2006 | Brahms Begins the Day | for orchestra; 3333 4331 timpani, perc (2 players), harp, str | Orchestral | 12' |
| 2006 | Lord Leonard Gray, His March | pno solo postcard piece featuring music from “The Earl of Kildare” | Solo | 1' |
| 2009 | The Earl of Kildare | Opera in 3 acts; 10 singers (boy sop, sop, mezzosop, 2 tenors, 2 baritones, 3 basses); orchestra: fl ob cl bsn hrn trpt trbn perc hp stg piano | Opera | 90' |
| 2008 | Scenes and Interludes from the Earl of Kildare | 3333 4331 timp 3 perc, harp, str | Orchestral | 15' |
| 2012 | Piano Trio | vn, vc, pno | Chamber | 15' |
| 2013 | A Camel's Swansong | Cello & piano | Chamber | 3'30" |
| 2013 | Toccata | solo cello | Solo | 2'45" |
| 2015 | String Quartet | for violin, viola, cello, and doublebass, three movements | Chamber | 17' |
| 2016 | 5 Oriental Texts (a re-working of “...” Three Zen Texts and Two T’ang Poems) | sop solo, 1111 2000 timp hp str. | Chamber | 12' |
| 2017 | Planxty Emma Coulthard | for flute with sliding headjoint, electronics (2 or 4 channel) | Solo | 8' |
| 2018 | Miniatures for Scott | Toy piano and Electronics | Chamber | Work in progress |
| 2018 | Pieces for Clarinet & Piano; Za Zdravko / Za Denitsa | clarinet and piano | Chamber | Work in progress |
| 2019 | TBC | 5 players, keyboard percussion ensemble | Chamber | Work in progress |
| 2019 | Introduction and Boogie | Piano and accordion | Chamber | 4' |
| 2019 | Sinfonia | String Octect & Electronics | Chamber | 35' |
| 2002 | Bulgarian Dance | | Orchestral arrangement | 2' |
