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 LP Latin Percussion Prestige Line Cowbell LP322, LP Latin Percussion Salsa Timbale Cowbell ES-5 & Black Beauty Cowbell LP204A, LP Latin Percussion Prestige Line Cowbell LP322 Black Crackle Finish