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 Mahler馬勒: Das Lied von der Erde (Song of the Earth)大地之歌 -III, Songs from China《中國之歌》for 3-part Treble Choir