Sonic contributions have been specially created for Annwn by Welsh artist Gruff Rhys, drawn from his back catalogue, archive, and latest experiments.
Mae cyfraniadau sain wedi’u creu’n arbennig ar gyfer Annwn gan y cerddor Cymreig Gruff Rhys, yn seiliedig ar ei gasgliad blaenorol, ei archif a’i arbrofi diweddaraf.