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 Petros Andreou - Trinity Guildhall Guitar Grade 6 - Gavotte II, Petros Andreou - New Trinity Guildhall Guitar Grade 3 - Allegretto, Petros Andreou - Grade 2 Plectrum Guitar - Bad Jack by Nick Powelsland