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 Playtesting my new Yamaha Singing Bell trumpet (alias YTR 6335H II BRASSEGO), Trumpet Comparison BRASSEGO "CAT" vs. Bach Stradivarius model 37