Re: Is it fair to play live with a metronome?
There are some more reasons why many big shows are being played with click:
As opposed to jazz (mostly), many pop/rock songs "function" best at a certain tempo,
and a click helps with that greatly. (Of course one could say the drummer could use
the click just for counting in and let go then.)
Many pop/rock shows include some sorts of backing tracks, loops, samples, you name it.
This works best with clicktrack.