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 "All Through the Night" for Violin, Viola & Harp, "Fileuse" for Harp by Alphonse Hasselmans, "Allegro for a Flute Clock" for Flute Trio