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 Jacoby: Sketches Mvt. 1 - Joel Brennan, trumpet; Michael Compitello, percussion (1 of 6), Henze - Lacrimosa from "Drei geistliche Konzerte" (Joel Brennan, trumpet)