Trevor Roberts was born in Llanharan in 1940. He studied orchestration and composition with Hubert Davies and David Wynne in Cardiff, and acknowledges also the importance of help and encouragement from Witold Lutoslawski at the Dartington Summer School. He was rehearsal pianist with the WNO from 1964-69, and piano tutor at the then University College, Cardiff, from 1976-82.

​

Commissioned works include: Idyll for SATB and strings, The Captivity for SATB and piano, Three Offertories, for SATB and organ, Flûte de Pan, for flute and harp, Trois Promenades, for clarinet and piano, Your Pain shall be a Music, for high voice and harp, Ivor Novello Fantasy, for piano four-hands, A Hymn of Thanksgiving, for SATB and organ, and Cofio Dewi, for SATB and organ.