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 Music and Movement Songs for Children: "Jump High" by Music with Miss Merry, Birthday Songs for Children: "Bubbles" by Music with Miss Merry, Music & Movement Counting Songs : "What Are the Odds?" by Music with Miss Merry