Another contribution from MotD fan Paul Steckler:
“Who can turn a dolorous Mexican popular song into a surf guitar classic? Why, The Ventures, of course. Their 1960 version of “Perfidia” (Spanish for “perfidy”, meaning faithlessness, treachery or betrayal) changes key at 1:07.”
Other than the Ventures’ version, which hit #18 on the pop charts, the tune has been covered by Desi Arnaz, Nat King Cole, and Linda Ronstadt, among many others.