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 Strymon El Capistan vs. Real Tape Delays: Roland RE-501 Chorus Echo, Arafúra - Run For-Rest, Run [Guitar Ambient / Soundscape / Shoegaze / Texture / Drone], Arafúra [ Arafura ] - Pedalboard Demo Sounds: [Ambient / Post-Rock / Shoegaze / Drone]