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 Duck's theme - from Peter and the Wolf by Prokofieff (Prokofiev) - on Cello, Cat's theme - from Peter and the Wolf by Prokofieff (Prokofiev) - on Cello, Jingle Bells on Cello