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 Allison Carvalho, 2008 Brazilian Guitar Marathon, Part 2, Christian Tetzlaff & Alexander Lonquich — Mozart: Sonata for Violin & Piano in A major, K. 526, Christian Tetzlaff on Bach's Sonatas & Partitas for Solo Violin