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 Sergei Nakariakov - J. Haydn: Cello Concerto in C major, Hob.VIIb:1 :III. Allegro molto - Budapest, Sergei Nakariakov - J. Haydn: Cello Concerto in C major, Hob.VIIb:1 : I. Moderato - Budapest