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 Haydn's Divertissement No. 2, Op. 100 for Flute, Violin and Cello, Maria Kaneko Millar - Sakura for Solo Violin - ABRSM Grade 8, Martinu Sonata for Flute, Violin & Piano - Finale