This hymn, Cwm Rhondda, has become something like an unofficial Welsh national anthem. I’m not Welsh, but it was very much with me last night: so I felt I had to post it in the morning. We also know it as Bread of Heaven or Guide Me, O Thou Great Jehovah. I am sure most churches have it in their hymnals.
Sung here by the Orpheus Choir Morriston.