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 Bluegrass Banjo Sample Library for NI Kontakt from Bolder Sounds, Bluegrass Banjo EXS24 Sample Library from Bolder Sounds, Guitarron sample library - BOLDER Sounds