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 Bach - Sonata for solo violin in g minor, Presto - István Kohán - clarinet, István Kohán - Konzertstück á la Feidman 2nd mvt, I. Kohán: Hungarian Fantasy No. 1