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 Rossini: Un mot à Paganini, Elégie pour violon et piano - Sergio Lamberto & Riccardo Caramella, Beethoven: Triple Concerto Op.56 - Vacla Remes; Michal Kanka; Riccardo Caramella, Haydn: Double Concerto for violin, piano and string (complet) - W. Laatz & R. Caramella