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 NYWS with Guest Horn Soloist, Philip Myers, New York Wind Symphony, Joseph Alessi Soloist, "Harvest" Concerto for Trombone, The New York Wind Symphony performing Holst's Second Suite in F for Military Band