Frida Boccara used the melody of Vivaldi's Concerto for two mandolins in G major for 'Les quatres chemins de l'amour', a single released in 1970. It was the year after her impressive Eurovision win with 'Un jour, un enfant', one of the most melancholy Eurovision winners ever.
It's never fun and games with Frida Boccara, so this song sounds almost upbeat in comparison. Classical music can lend itself to modern interpretations, and this one is a good example.
My collection: 7" single no. 5693 Found: Velvet Vinyl Outlet, Leiden, January 9, 2015 Cost: 1 euro Tracks: 'Les quatres chemins de l'amour' / 'La croix, l'étoile et le croissant'