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 Krumpholtz, Sonata op. 8 n. 5 (harp and mandolin), Heinz Holliger, Sequenzen (Lucia Bova, harp). Arpa Contemporanea - Contemporary Harp, Kaija Saariaho, Fall, for amplified harp and live electronics