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 Robert Gupta: Pereira, "Partita for Solo Violin" (I), Robert Gupta: Bach, G major Prelude arr. for solo violin, Pereira/Gupta: Pereira, Three Movements for Vibraphone and Violin (III)