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 2015-2016 TMEA Tenor Trombone All-State Etude No. 1, 2015-2016 TMEA Tenor Trombone All-State Etude No. 2