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 Gru- For Clarinet, Bass Trombone, Violin, Cello, and Piano, by Salvatore Macchia, Sarabande - For French Horn, Bass Trombone, and Cello, by Stefan Swanson