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 Mendelssohn-Bartholdy - Violin Concerto No. 1, 1st Mov. [1/3] - Anna Savkina (14 years old), Anna Savkina plays Brahms - Violin Concerto in D major 3rd movement, Anna Savkina - Mozart - Violin Concerto No 5 (2 mov.)