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 7 String Classical Guitar - Flamenco Song, Fragile (cover) Cello, Piano, ES 175 Gibson Jazz Guitar, Long and Winding Road - (cover) with cello, piano, and Gibson ES175 jazz guitar