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 Odeum Guitar Duo - Enrique Granados - Oriental - May 9, 2011, Robert Wetzel - Isaac Albeniz - Mallorca & Zambra Granadina, Gaiana Mndoian, cello & Robert Wetzel, guitar - Leonard Von Call - Polonaise Op. 84