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 Sviatoslav Richter in Prague, 1986 - Beethoven Sonata Op.101, Oistrakh/Oborin - Beethoven Violin Sonata No.10, Op.96, Sviatoslav Richter plays Liszt - Music for Piano & Orchestra