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 For Andromeda - from Transcendence by Sean Christopher feat. Andrew Sords on violin, Luna's Song (Moonlight Sonata) Relaxing Spiritual Music from Transcendence by Sean Christopher, Playing in the Nebula - Relaxing Spiritual Music from the album Transcendence by Sean Christopher