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 U of Toronto Steel Pan Ensemble 07/08 - Siyahamba, Double Concerto for Oboe & Violin in C Minor, BWV 1060 - Mvt 3 - Recital 2009, Concerto for Oboe in D Minor, RV 454 - Antonio Vivaldi