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 731, J.S.Bach: Ich ruf zu dir, Herr Jesu Christ (Orgelbuchlein)