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 コンサーティーナ 独奏 「風の憧憬」 Chrono Trigger - Yearnings of the Wind, concertina cover, concertina "Arrietty's song" 「アリエッティの歌」 コンサーティーナ 40 key C/G Anglo