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 Sejong Wind Orchestra - Florentiner March - J. Fucik, Sejong Wind Orchestra - Clarinet Polka - L. Welk, Sejong Wind Orchestra - Radetzky Marsch - J. Strauss