And we know when it's present and when it isn't.

This has nothing much to do with following the score and everything to do with satisfying, even exceeding the audience's highest expectations. This is not schlock improv, nor is it simply showing off. It's more like really showing up. Slip over here for more ...

Paper, Scissors, Stone
by Tom Wayman

An executive's salary for working with paper
beats the wage in a metal shop operating shears
which beats what a gardener earns arranging stone.

But the pay for a surgeon's use of scissors
is larger than that of a heavy equipment driver removing stone
which in turn beats a secretary's cheque for handling paper.

Completed over here: Link