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 Alexander Rybak playing the violin part in "Møkkamann" Dokka 28.10.12., Alexander Rybak Violin fun, Alexander Rybak & Inga Våga Gaustad "Concerto for two violin in D minor" by Bach