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 "A'cappella ExpreSSS" - concert in "Moscow International Music House" - 2009, yesterday, Moscow Vocal Group "A'cappella ExpreSSS" - concert in "International Music House" 2009.