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 "Eli Eli", from Georgius Bardos by Alter Echo www.alter-echo.org, "Unicornis Captivatur" from Ola Gjeilo, by Alter Echo, "Alouette" from Robert Sund, by Alter Echo