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 All K.K. Slider Songs - Super Smash Bros for Wii U and 3DS, Punch Out!! - All Music - Super Smash Bros for Wii U and 3DS, The Legend of Zelda Four Swords Adventures Music - Tower of Flames