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 The Train and the Boat Part 23 - Happy Ending, The Train and the Boat Part 18 - Thomas Meets Tillie/"Appreciate the Lady", The Many Adventures of AiAi The Monkey part 17 - "The Rain Rain Rain came Down Down Down"