Arwel a Myrddin, Hogia'r Wyddfa23/12/2018BBC Radio Cymru Duration: 1 awr, 58 o funudauFirst broadcast: Sun 23rd Dec 2018, 06:00 on BBC Radio Cymru 2Latest broadcast: Sun 23rd Dec 2018, 06:00 on BBC Radio CymruCerddoriaeth amrywiol gydag Arwel Jones a Myrddin Owen. A variety of music with Arwel Jones and Myrddin Owen.GenresMusicBrandArwel a Myrddin, Hogia'r Wyddfa Source: BBC Online