From EVERYTHING I've heard, Betty Carter was DEEP into the moment. She always had young bands and had no compunctions about schooling them on the stand. Not verbally, but through stuff like looks and gestures.
When she wanted to go somewhere, she wanted to go there RIGHT NOW, if you know what I mean. And when you got there, she would also let you know with her looks.
It wasn't a gig for the easily-bruised sorts, but jesus, you could not get a better schooling, imo. Look at who all came up through her bands.
I have every bit of respect for a leader who operates like that. No bullshit or halfstepping of otherwise tolerating less than GETTING THERE.
As Serious As Your Life indeed, totally.