| Text: | O Iesu mawr, rho d'anian bur |
| Author (stanzas 1, 3, 4): | D. C. |
| Author (stanzas 2-3): | W. W. |
| Tune: | LLEF |
| Composer: | Gutyn Arfon |
| Text Information | |
|---|---|
| First Line: | O Iesu mawr, rho d'anian bur |
| Author (stanzas 1, 3, 4): | D. C. |
| Author (stanzas 2-3): | W. W. |
| Language: | Welsh |
| Publication Date: | 1952 |
| Tune Information | |
|---|---|
| Name: | LLEF |
| Composer: | Gutyn Arfon |
| Meter: | 8.8.8.8. (L. M.) |