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 四月は君の嘘 ED 2 オレンジ (Orange)【harmonica cover with sheet music 楽譜付】, シュヴァルツェスマーケン OP《white forces》【fripSide】sheet music & midi, fripSide: memory of snow - harmonica cover with sheet music