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 Different MEINL Tambourines part3, MEINL Cymbals & Percussion at NAMM 2011, Bryan Brock "MEINL Percussion" Solo "Jumbo Bass" and "Turbo Slap-Top" "Cajon"