In one of the hymnals we use (namely, the 1990 Presbyterian Hymnal) the traditional Easter hymn “Christ the Lord is Risen Today!” is set to a tune named “Llanfair.” You can hear the tune here.
It gets its name from a town in Wales called “Llanfairpwllgwyngyll“. According to Wikipedia, most people know it as “Llanfair PG” but its real name is actually longer still. At 58 letters, it’s the longest place name in Europe and the second longest in the world.
Which is why the tune is just called “Llanfair.” Not many people can tackle a name like that. Here’s a video of someone who can.