The tune called La Folia may be the most popular tune in the history of classical music. Its roots go back to 15th century Portugal. Beethoven, Paganini, Liszt, Rodrigo, and more than 200 other ...

Rachmaninoff's "Variations on a Theme of Corelli," Op. 42, is, in a sense, misnamed. It's based on a tune that Corelli made famous use of, in one of his sonatas, but Corelli didn't come up with it ...