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 531F-Cosmonaut - Psychedelic Synth Jam (Moog Sub37 & Dave Smith Instruments Mophox4 + Volca Beats), Ambient Sounds EHX B9 + Small Clone & Strymon El Capistan + BlueSky, Electro-Harmonix Lester K Demo