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 Gerudo Valley - Arrangement for Brass Quintet and Percussion, Lux Aeterna (Requiem for a Dream) arranged for Brass and Percussion, I'll Make a Man Out of You (Mulan) - for Brass and Percussion