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 Geneva Lewis - Mendelssohn Violin Concerto in E Minor (2nd & 3rd Mvts), Geneva Lewis Bruch Violin Concerto 3rd Movement, Geneva Lewis - Barber Violin Concerto Movement II (Andante)