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 "さよならをするために" フルート二重奏 & ピアノ伴奏 sayonarawosurutameni, 大きな古時計 フルート演奏 Grandfather's clock