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 Maddalena Laura Lombardini Sirmen - Violin Concerto No. 3 in A major, Op. 3 No. 3, František Xaver Pokorný - Clarinet Concerto No. 2 in B-flat major, Rodolphe Kreutzer - Violin Concerto No. 14 in E major