The one and only Beethoven broke free of the model of composer as servant; in addition to accepting commissions from wealthy patrons, he made a living by performing and publishing his music. So when a Scottish publisher approached him about creating some genteel arrangements of folk songs -- mostly from the British Isles, but also from elsewhere in Europe -- he accepted. No matter that Beethoven didn't speak the languages he was dealing with. He was Beethoven, and his settings are utterly charming.
1. Scottish: Auld Lang Syne
2. Irish: The Heart of an Irishman
3. Welsh: The Vale of Clwyd
4. Italian: La Gondoletta
5. Polish: Poszla baba po popiól
Below: Sir Thomas Allen, Dame Felicity Lott and John Mark Ainsley sing Beethoven's arrangement of 'Auld Lang Syne' from 12 Scottish Songs: