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 Clutch - That's an Irish Lullaby (International 2015), Vintage Mix Quartet - This Land is Your Land (2015 Saturday Night Spectacular), Nashville Sounds invite Barbershop Harmony Society HQ to sing The Star-Spangled Banner