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 [Kagamine Len Append Serious] Jellyfish Lullaby, [Nekomura Iroha V4 Soft, Kagamine Len Append Cold] Alluring Secret ~Black Vow~ Music Box Ver.