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 Lekeu Violin Sonata (2/3) Henri Koch 516550B-51, Brahms Violin Sonata No.3 (1/2) Kochanski Rubinstein, Bach Violin Sonata No.4 in C minor (2/4) Alfred Dubois LFX267B