(1 February 1941 – 2 October 2005)[1] was a Welsh Roman Catholic monk, organist, and composer of choral and organ music.
[1] He attended Dynefor Grammar School, and later studied music and education at University College Cardiff.
[1] Rees began a musical career as organist and director of the choir at Cardiff Metropolitan Cathedral, where he worked from 1963 until 1968.
[1] He became abbot of the abbey in 1986, a position he held until he resigned in 1993 due to the pressures of the role and his mental health.
[4] Rees had suffered from depression for much of his life, and attempted suicide the year before.