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 Baiba Skride - II. Scherzo (Allegro) - Violin Concerto (Shostakovich), Baiba Skride - III & IV - Passacaglia & Burlesque - Violin Concerto (Shostakovich)