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 Austin Symphonic Band performing Carmina Burana, Boston Brass Performing Verano Porteño by Astor Piazzolla (arr Jose Sibaja), Austin Symphonic Band performing Frenergy at Long Center