“Come Thou Long Expected Jesus” is based on the tune “Hyfrydol” written by Rowland Huw Prichard.  Prichard (January 14, 1811-
January 25, 1887) was a Welsh musician. A native of Graien­yn, near Bala, he lived most of his life in the area, serving for a time as a
loom tender's assistant in Holywell, where he died. In 1844 Prichard published Cyfaill y Can­to­ri­on (The Singer's Friend), a song book
intended for children.

Hyfrydol (Welsh for cheerful) appears in a number of Christian hymnals in various arrangements.  Prichard composed this hymn tune
before he was twenty years old. The words to “Come Thou Long Expected Jesus” were penned by Charles Wesley and published in
Hymns for the Na­tiv­i­ty of Our Lord (Lon­don: Will­iam Stra­han, 1745), num­ber 10.