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 John Edward Hasse - Smithsonian American Art - Luce Center - Pop-up Piano Recital, Strange Music for Nam June Paik: Violin Power - Steina Vasulka, A Revolution in Wood: The Bresler Collection