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 The Classical Music for Reading - Concerto For Two Violins - Largo ma non tanto, The Classical Music For Reading: In My Native Land, Op. 43, No. 3, The Classical Music For Reading: Nocturne In Eb Major, Op. 9, No. 2