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 Impactist - Dreamsicle (Cartoon Network Music / Check it 4.0 / Dimensional), Impactist - Low Fidelity Cat Dream, Impactist - Hello Neighbor Sampler