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 Waltz by Brahms - Suzuki violin Book 2, Hunters' Chorus by C.M.v. Weber, Suzuki violin Book 2, Let's go fly a kite (from Walt Disney's "Mary Poppins")