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 Concertino for guitar and orchestra - 1º - A. Tansman - Fix Nicolet/Orch.Synf. Kielce(J. Rogala), Percussion Study I - A. Kampela by Fix Nicolet