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.S. Bach - Liebster Jesu, wir sind hier - BWV 634, Schübler Chorale - "Wachet auf ruft uns die Stimme" (BWV 645) by J.S. Bach, Grand Choeur (Sortie pour Noël) by César Franck