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 Anna Moffo & Helen Donath - E. Humperdinck "Hänsel und Gretel" Abendsagen (Evening prayer), Gundula Janowitz - W.A. Mozart "Le Nozze di Figaro" E Susanna non vien! - Dove sono i bei momenti, Lucia Popp - W A Mozart "Il Re Pastore" - Aminta "L'amero, saro costante"