Sheet music for SATB (a cappella). A setting by Robat Arwyn to the traditional liturgical words used in the Requiem mass.Originally composed for a cantata called Er Hwylio'r Haul (Curiad 1056) which was performed for the first time at the National Eisteddfod 2005 with Bryn Terfel and Mari Wynn Williams together with a Youth Choir. A setting of the liturgical words 'May light eternal shine upon them, O Lord.' Welsh and Latin words on the copy. Also available as SA and TTBB.