nsp, it's nice of you to be concerned about my health.
Joni Mitchell made a recording of Mingus's birthday party, and sung some songs on that recording; more talking than music, but I found it interesting.
I was only curious about people who are fans of the "avant garde". Even when my favorite musicians go "avant garde", I can live without it; however, if you have some you like, please post it, I never know.