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 Music Foundations Tutorial: Using Seventh Chords For Harmonic Progression Pt.1: Major 7th (Maj7), 'The Tempest' Innovative Analog Drum Machine / Synth from Dave Smith + Roger Linn, Dubspot Interview: Young Music Technology Developer - Adam Place and AlphaSphere