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 Luloj ze mi luloj, kołysanka z Podhala / Polish lullaby from Podhale region, "Usni že mi usni" kołysanka Słowacka / Slovak lullaby