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 Trumpet Voluntary by Clarke, Purcell on hammered dulcimer by Timothy Seaman, Child Grove by Trio String Wind on guitar, harp, hammered dulcimer, and pennywhistle, There Is a Fountain (Cleansing Fountain) by Timothy Seaman & Ann Robinson