A new commission in development of 3 songs by Robat Arwyn and Hywel Gwynfryn, celebrating the contribution of Gwendoline a Margaret Davies, Gregynog to Wales' cultural life. The songs were performed by Mared Williams, John Ieuan Jones and Celyn Cartwright during Eisteddfod Amgen in August 2020. Commissioned by the National Eisteddfod of Wales.
Commission piece for Gareth Trott, euphonium tutor in the London College of Music and principal euphonium player with the Band of the Irish Guards.
Commission for French quartet, Sottovoce Ensemble as part of their 10th birthday celebrations this year. Words by Hywel Gwynfryn. They have previously performed Benedictus, Agnus Dei and Adre'n ôl by Robat Arwyn.
- Ave Maria - commission for French quartet, Sottovoce Ensemble as part of their 10th birthday celebrations in 2021.
- Commission piece for Gareth Trott, euphonium tutor in the London College of Music and principal euphonium player with the Band of the Irish Guards.
- Y Ddwy Chwaer - commission of three songs for the National Eisteddfod of Wales. Words by Hywel Gwynfryn.
- Nodau'r gân - commission to celebrate the 20th birthday of Côr Persain yn 2020. Words by Beryl Owen.
- Tua'r Wawr - piece for the harp for Llywelyn Ifan Jones
- TTB arrangement of Geiriau Gwag out of Er Mwyn Yfory for Eryrod Meirion
- Pan fo'r geiriau wedi gorffen. New song for John Ieuan Jones. Words by Mererid Hopwood
- Hanes creu popeth yn y byd! - cycle of 7 songs for Pen Barras School Choir, Côr Cytgan Clwyd, Côr Rhuthun and Gwenan Mars Lloyd. Commission for the North Wales Music Festival 2019. Words by Mererid Hopwood.
- Llais yn cyffwrdd lleisiau - anthem for the North America Welsh Choir. Words by Mererid Hopwood.
- Arwain, arwain finnau - SATB piece for the Coity Singers. Words by Beryl Thomas.
- Miwsig beth bynnag ddaw - SSA piece for Côr Merched Edeyrnion. Words by Mererid Hopwood.
- Gyrru drot i'r dre (based on old nursery rhymes) - SATB piece for Côr Cytgan Clwyd
- Hwn yw fy Mrawd - commission work for the National Eisteddfod in Cardiff in 2018. Words by Mererid Hopwood.
17 songs depicting the life of actor and singer, Paul Robeson, and his connection with Wales.
Performed by Bryn Terfel, John Ieuan Jones, Elain Llwyd, Mared Williams, Elin Llwyd, Steffan Prys Roberts, Steffan Cennydd, the Eisteddfod Choir and individuals from Cardiff area schools.
- Llwybrau - piece for the cello for Steffan Morris - commissioned by the North Wales Music Festival
- Roedd yn y wlad honno (Gloria in Excelsis) - Côr Meibion Trelawnyd
- Dy Hanner Di o'r Byd - Côr Cofnod. Words by Karen Owen.
- Lleisiau Mewn Cynghanedd - Côr Lleisiau'r Cwm. Words by Tudur Dylan.
- Canu yn ein Gwaed - Côr Meibion Bro Aled. Words by Rhys Dafis.
- Conemara Meirionydd - produce of a composing workshop with pupils from Ysgol Bro Tryweryn, Y Bala. Words by Myrddin ap Dafydd
- Sion a Sian (traditional words) - Côr Cytgan Clwyd
- I am the Song - The City of Chester Male Voice Choir. Words by Charles Causley.
- Diamonds that shine in the night - The Chester Ladies Choir. Words by Robat Arwyn.
- Dyma gariad fel y moroedd - Côr Meibion Bro Aled. Words by Gwilym Hiraethog.
- Mae'r awel yn ein huno - @ebol. Words by Tudur Dylan.
- Ger y Lli - Côr Ger y Lli. Words by Eirug Salisbury.
- Anthem o Lawenhad - Cantorion Rhos. Words by Sian Freer.
- Cân yr adar yn y gwynt - Ysgol Morgan Llwyd, Wrexham. Words by Tudur Dylan.
- Ffydd Gobaith Cariad - Urdd National Eisteddfod 2014. Words from the Bible.