John David Edwards (b. Penderlwyngoch, Cardiganshire, Wales, 1805; d. Llanddoget, Denbighshire, North Wales, 1885) was educated at Jesus College, Oxford, England, and ordained an Anglican priest in 1833. He served parishes in Rhosymedre and Llanddoget and published a collection of hymn tunes, Original Sacred Music (2 vols., 1836, 1843), for use in Anglican churches in Wales.

RHOSYMEDRE was published in the 1836 collection. The tune's title is derived from the Welsh parish where Edwards was pastor for some years after 1843. In Wales this tune is associated with Easter and is thought of as a jubilant hymn tune. Outside of Wales, however, it often receives a more devotional treatment.

RHOSYMEDRE is characterized by mainly stepwise motion and by repeated tones. It is a bar form tune (AAB). Sing this fine harmonization in parts. Use firm accompaniment, and play at a moderate pace.

--Psalter Hymnal Handbook