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 PIANO KAWAI KL78W sound check by BEETHOVEN PIANO, Sonata Pathetique Op.13 1st mov. Allegro di molto e con brio - PIANO YAMAHA U30A sound check, GRAND PIANO DIAPASON DR171RG sound check by BEETHOVEN PIANO