Youtube is _filled_ with classical musicians getting shafted by this, from amateur ensembles to semi-pros and even some professional groups getting silenced or defunded by these algos. The trouble is that Bach played well sounds like...well, Bach. If you're not "the first owner" of the copyright (and a big music company), you tend to get screwed financially (and the big companies do a LOT of screwing). YT's algorithms are designed to detect "I took this whole TV show up a tone in pitch and put a fake pair of curtains on the front to evade content ID". The Bach will sound "the same" to a copyright algorithm.

I only listen to classical music, and I've noticed that where YT used to once be a great source of legally-free brilliant performances (often with scores!) it's been going downhill and I've slowly been redirected to copyrighted Big Media recordings of old classics (which usually I do not prefer).