Does that really matter? Eventually it will be 99%, but even then I am not necessarily concerned until it crowds out human created songs.

Before AI, 99% of anything was trash and now with AI, perhaps 99.9% is. But the thing that matters is whether the remaining 1% or 0.1% is good or meaningful for us or not. Though I guess soon enough even AI music will be meaningful for us, but I don't think this precludes the existence of human musicians.