videos in AudioSet
A list of about a million ten-second YouTube clips, each labelled with the sounds in it, that Google published in 2017. Labs use it to train and test general audio and music models.
Including J.G.Walther/A.L.Vivaldi Concerto in si minore 1 Allegro, Improvisation in Baroque Style, closing with an Improvisation on "Art of Fugue" Theme, Improvisation in baroque Style recorded in Büchenau - Germany