I had always understood that because of it Wesleyan / Calvinist / Methodist history that the Welsh do not have a folk music tradition –in that they have a choral / hymns tradition.

Singing for pleasure ( and certainly not songs of love / politics and other subjects which might arouse the unrest in the soul), were not encouraged – only singing in chapel - in praise of things Holy.

Recently written Folkie–type Songs in the Welsh language maybe .