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 Beethoven Violin Concerto in D major, Op.61 - I. Allegro ma non troppo Part-3, Quiet City - Aaron Copland - SouthCoast Symphony, Britten Simple Symphony op 4 Benjamin Britten - I-Boisterous Bouree , II-Playful Pizzicato