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 F. Mendelssohn: Violin (flute) Concerto in E minor. Part 2/3, J.S. Bach: Sonata in C-minor for violin and piano, BWV 1017. I. Siciliano, H. Villa-Lobos: The Jet Whistle (arr. for flute and piano by W. Bennett). III. Vivo