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 Mourning Dove Sonnet [Christopher Deane] 1/2, Toward the Sea [Tōru Takemitsu], Eclogue for Flute and Percussion [Teruyuki Noda]