Being a musician is one of the more valid art forms.
They did leave something for tomorrow. With the adrenaline going tomorrow, there?s no risk of them falling off these, and there?s a good chance they can squeeze out a little more.
The way it is, is that the studio is such a sterile environment. When you play live, you can blow it out more than you can in the studio. It's just the energy of the audience. You get caught up.