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 [Symphonic Power Metal] Pathfinder - Ad Futuram Rei Memoriam [Symphonic Power Metal], [Symphonic Power Metal] Pathfinder - All The Mornings Of The World [Symphonic Power Metal]