Opera Serikandi Nusantara (New Work 2020-2022) for Soloists, UiTM Chamber Choir, Traditional Ensemble, UiTM Percussion Ensemble, Pre-Recorded Material and Multi-Media; Malaysian Premiere: Aug-Dec 2022 Dewan Seri Budiman Concert Hall
Opera Puteri Saadong (revised version 2015-2015) for narrator, soloists, 5 main characters, chorus, pre-recorded sound and 12 players, Grant Creative Industry, composer conducting, Kanazawa Citizen Centre, Japan and Tabernacle, Notting Hill, London, UK
Opera Puteri Saadong (2012-2014) for narrator, soloists, chorus, gamelan ensemble, makyong group and chamber orchestra, Grant Creative Industry, composer conducting, klpac and penangpac
Mimpi Dalam Lagu for solo soprano, chorus SATB, flute and piano (2010) commissioned by National Choir of Malaysia, Department of National Cultural and Arts, 'The Musicmakers' concert, Actors Studio@Lot10, KL, Syafinaz Selamat soprano, composer conducting
Perjalanan (Journey) for soloists, chorus and large orchestra (1997 - work in progress)
ShadowSound based on Derek Shiel's poem Laugh for soprano and Sculpted Sound Ensemble (2009),commissioned by director Derek Shiel, 'Conference of Noise' 100 Years of Futurist Movement, London, UK
In Liquid Praise of Sound Refraining for a narrator, 4 singers (SATB) and electronics/multi-media (2006-07) member of BBC Singers, using ancient pali and Alistair Appleton's text in the spnm collaboration project 'Space Behind Words', Spitalfields Music Festival, London
Azan (Call to Prayer) for mezzo soprano, baritone and 3 sound sculpture players (2006-07) commissioned by Derek Shiel, Sculpted Sound Ensemble, Guildford International Music Festival 2007, composer conducting
Lagu III (Song III) for soprano and orchestra (1998; revised 2003)
Lagu Tanpa Kata I (Song Without Words I) for soprano and orchestra (1994; revised 2003) National Choir of Malaysia, Syafinaz Selamat soprano, composer conducting
Meditasi Ritualistik Seorang Pemuda (Ritualistic Meditation of a Man) for solo soprano, alto, tenor and bass, 3 SATB chorus groups and large orchestra (1997) commissoned by the National Choir of Malaysia, Malaysian Ministry of Culture, National Choir and Orchestra of Malaysia, composer conducting
Ritual - Pemuda II (Ritual of a Man II) for solo soprano, alto, tenor and bass, 3 SATB chorus groups, piano and 3 percussionists (1997) commissoned by National Choir of Malaysia, Malaysian Ministry of Culture, composer conducting
Pemuda (Man) for solo baritone (and narrator),soprano (narrator),SATB and chamber orchestra (1996) Carnegie Contemporary Ensemble composer conducting (USA)
Lagu I & II (Song I & II) for soprano and chamber orchestra (1994) Carnegie Contemporary Ensemble, Leonardo Balada conductor (USA)