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 Introduction to Tone2 Saurus Analog Synthesizer, Tone2 Icarus tutorial: Filters, Electra 2 Overview: 4 Layers, 14 Synthesis Methods & 1200+ Sounds