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 Cello Suite No.1, BWV 1007 - Helen Marshall / Dracapalley - Rob Armstrong Baby guitar, Sumurun - by Helen Marshall (Nikos Apollonio Bell Cittern) - Dracapalley