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 Relaxing Techno/Trance (15) -Day Dream, Relaxing Techno/Trance (16) -Summer Rain, Relaxing Techno/Trance (14) -Nightshift