The familiar Welsh tune of “The Ash Grove” has been used with numerous sets of lyrics, including the hymn, “Let All Things Now Living.” "Calon Lân," meaning “A Pure Heart,” is a Welsh hymn, with lyrics written in the 1890s by Daniel James, known also by the bardic name, Gwyrosydd. This arrangement is suitable at any time but is especially appropriate at Thanksgiving. The piece is 3 and a half pages long, with no lever or pedal changes. Partial lyrics for Calon Lan are also included.