I realised a long time ago that instrumental music speaks a lot more clearly than English Spanish Yiddish Swahili any other language. Pure melody goes outside time.
It's self-effacing it's hard-luck the shtetl stories. All those Coasters things are an amalgam of Yiddish and black humor.
I've performed solo for 20 years now but I don't do much of it because if you only play alone you go crazy and out of tune and play foolish music.