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 Forrest plays Maurice Andre's cadenza to the Haydn Trumpet Concerto, Forrest Johnston at ITG 2012 - Neruda Concerto 1st movement with cadenza, Six Pièces Brèves En Duo pour 2 Trompettes by Castérède (Forrest and Rich)