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 Keyboard Glockenspiel - details and points of interest, Marrying Celesta and Keyboard Glockenspiel, Keyboard Glockenspiel, "The Sorcerer's Apprentice" (from L.A. Percussion Rentals)