They knew what they were doing. They had obviously practiced much more than other bands. They had it down. They were an ensemble. It was no surprise to him when he learned she'd only played bass for six months.
Somebody goes to college, they learn to do it correctly.
As for David Byrne, Kristal knew he wasn't a true rock 'n' roller. Byrne was very shy. He just did his thing so to speak. He didn't communicate very much. He seemed almost embarrassed by it all.