Dafydd Bullock was born in 1953 in Llanberis. A composer, conductor, arranger and teacher, he graduated in Music (University of Manchester and the Royal Northern College of Music, 1971 - 1976) where he studied with George Hadjinikos,  and took a Master's Degree in International Relations (University of Sussex, 1981 - 1983). In 1993 and 1994 he won first prizes at the National Eisteddfod of Wales, and in 1995 he was honoured by admission to the highest Order of the Gorsedd of Bards. He was made a Fellow of the Royal Society of Arts in 2005.

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His compositions include twenty-three symphonies, a cycle of eighteen symphonic poems, two operas, two Requiems, two Mass settings, a Missa Brevis, an oratorio, twenty-one string quartets, eight Trios and other chamber music and many songs and pieces for piano.

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He is published in the British Isles, Belgium, USA and Luxembourg. He has made 30 CDs. His music has been performed in many countries, including Japan, China, Brazil and Colombia and widely within Europe.