Welsh Hymn - Cwm Rhondda 

Cwm Rhondda is a popular hymn tune written by John Hughes (1873-1932) in 1907. The name is taken from the Welsh name for the Rhondda Valley.
It is usually used in English as a setting for William Williams' text "Guide Me, O Thou Great Redeemer" (or, in some traditions, "Guide Me, O Thou Great Jehovah"), originally Arglwydd, arwain trwy’r anialwch ("Lord, lead me through the wilderness") in Welsh. The tune and hymn are often called "Bread of Heaven" because of a repeated line in this English translation.
In Welsh the tune is most commonly used as a setting for a hymn by Ann Griffiths, Wele'n sefyll rhwng y myrtwydd ("Lo, between the myrtles standing"), and it was as a setting of those words that the tune was first published in 1907.