Sugar Bowl, the Bessie, and Mother E are fine recordings - but I'd give (something that looked like) my left nut for a tape of her and Gerald Donovan's nights at the Hungry Eye (Chicago, late '60s - near the Plugged Nickel). They ran an open set. Gene Dinwiddie was the normal sax player, but Roscoe Mitchell, Lester Bowie, Maurice McIntyre, etc used to sit in regularly.
On top of everything, she's a very fine lady.