HE was the German genius whose compositions are still known around the world. But new research shows Ludwig van Beethoven was sometimes playing a Jacobite tune.

Evidence gathered by German musicologist Dr Michael Klevenhaus suggests some of the maestro’s music came from Bonn via bonnie Scotland.

According to Klevenhaus, Beethoven created new versions of as many as 47 Scots melodies between 1809 and 1820 for publisher George Thomson, an Edinburgh-based folklore collector.

But with the 1745 Jacobite rebellion still within living memory, the true origins of the tunes were hidden, with their titles and lyrics kept from the composer.

READ MORE: James MacPherson: The Scot who inspired Beethoven and Schubert

The new information is featured in a BBC Alba documentary as the 250th birthday of the classical giant is marked.

It follows Klevenhaus from Beethoven’s Bonn birthplace through Scotland’s Highlands, islands and Lowlands as he meets trad musicians to reveal the hidden Gaelic melodies in the icon’s work.

It builds on five years of research triggered by footnote in a scholarly work by piper Allan MacDonald, who stated that the song Enchantress Farewell, arranged by Beethoven with words by Sir Walter Scott, was based on Mhnathan a’ Ghlinne Seo (Women of the Glen).

Klevenhaus said: “What would a radical republican like Beethoven have made of a political song by Sileas Na Ceapaich, about people rising united against the king?

“It’s been fascinating to discover the highly political nature of some of the original songs.”

Orain Ghaidhlig Beethoven airs on BBC Alba next Wednesday – December 16 – at 9pm.