As described on the live album Festival Wind, Alexander was reading an Internet filk mailing list when his fans observed that they could sing "March of Cambreadth" to the tune of his children's song "Hap'n'Frog" and vice versa.
As the theme for that year was "Zombie Attack" the lyrics included humorous puns relating to unlife and keeping the signature chorus line of "How many of them can we make die!
The words to the parody are by Bob Kanefsky,[4] and deal with Santa Claus delivering toys, replacing the signature refrain "How many of them can we make die?"
[6] John Ringo has (mis)quoted "March of Cambreadth" in his novels Hell's Faire, Ghost and There Will Be Dragons as well as in the second Looking-Glass book, Vorpal Blade.
Because of his Celtic tune and his use of bagpipes, March of Cambreadth was taken by the supporters of the Gaunt's Ghosts saga and used in fanon for the battle hymn of the "Tanith First-and-Only", sung by the trooper Brin Milo to encourage and motivate his companions in the hellish battlefields of the 41st Millennium (Warhammer 40,000).