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 らいおんハート/タスマニアンズ(昭和大学アカペラ部LongFlags), ハモネプ★瞳はダイアモンド★昭和大学アカペラ(2010.7.11)