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 Some Deep Sounds: High Spirits Walnut Condor Cm Flute, Singing in the Cool Autumn Air: Stephen DeRuby Eastern Cedar Low Bb EZ-Anasazi Flute, Solitary Spaces: Laughing Crow Granadillo Em Flute