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 Quatuor Issy-Paris - Danse rituelle du Feu de l'Amour Sorcier de Manuel de Falla, Quatuor Issy-Paris - La Jeune Fille et la Mort de Franz Schubert, Quatuor Issy-Paris - España d'Emmanuel Chabrier