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 "Ghost Ship" - Rupert Chappelle, Theremin, Stern Grove Quartet #1 - Rupert Chappelle, Theremin, The Easiest Instrument Quartet - Rupert Chappelle, Theremin