"The Keys of Canterbury" is a courting dialog song.
The earliest printed copy of that tune is found in Haliwell's Popular Rhymes and Nursery Tales (1849). The volume consists of nursery rhymes that he collected from "oral traditions". The tune was known in both England and Scotland. It is also known in the Appalachians. It was used in some areas as a two team singing game.
Other variants and alternate titles include: "The Keys of Heaven", "Madam I Present You with Six Rows of Pins", "The Disdainful Lady", "There Stands a Lady on the Mountain", "There Stands a Lady in the Ocean", "Lady on the Mountain", "When I Was Young I Was Well Beloved", "If You Will Walk With Me", "Oh Madam I Will Give to Thee", "Blue Muslin" and "The Little Row of Pins".
It is included in the Roud Folk Song Index as #573.
It was printed in Belden's Ballads and Songs Collected by the Missouri Folk-Lore Society (1955) "A Paper of Pins", Randolph's Ozark Folksongs (1946-1950) "The Paper of Pins", Scarborough's A Song Catcher in Southern Mountains (1937) "A Paper of Pins", Sharp's English Folk Songs from the Southern Appalachians (1932) "The Keys of Heaven", Sharp's One Hundred English Folksongs (1916, 1944) "The Keys of Canterbury", Broadwood and Maitland's English County Songs (1893) "I Will Give You the Keys of Heaven", Lomax's American Ballads and Folk Songs (1934) "Paper of Pins", Silber's Folksinger's Wordbook (1973) "Paper of Pins" and many others.