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 Rebecca [SWE] - 10. I'm a Mountain., Robert Hinchliffe [UK] - a_4. Words Upon An Ocean., V.A. Ayrshire Folk [UK] - a_2. Land o' the Leal.