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 capella sacred music - Halleluiah - Daniel Spassov Milen Ivanov / Даниел Спасов Милен Иванов, Krachmaritse - Daniel Spassov / Кръчмарице - Даниел Спасов Bulgarian folk music