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 Yoshie & Yukie - Violin and Piano Duet - A. Vivaldi Violin Concerto in G minor - 1st & 2nd movements, Lark Ascending by Ralph Vaughan Williams - violin and piano, Tango Song and Dance by Andre Previn