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 Nic's Violin Tips 2 Pizzicato or Plucking wmv, Nic's Violin Tips 12 Shady Grove, Nic's Violin Tips 6 Stroking the Strings