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 PIANO-IMPRO - "The Sound of War II" (2008)(Part 1), Mini-Guzheng: "Playing Children" (Impro), BATTLESTAR GALACTICA (TOS) - Musical Parody: THE ADAMA SINGERS: "The Sound Of Cylons" ;)