If I was going to try and actually do that in my own concert photography:
MJB DIGITAL on concerts
definitely shoot in RAW if you are asking questions about
how if it is important shots. if its not a pro assignment or a class assignment, then get a drink immediately when you show up. 8)
oh yeah, and start having fun.
GET EARPLUGS!!!
I was shooting a wedding saturday and you should have seen her face when i pull earplugs out of my bag 8D
OK OK down to the question
I would shoot a
tad cool and under expose by a tiny smidge.
thats just how i would start if i was going for the image you describe. then i would start exploring the light.
for instance:
what about, if they have a green light, shoot a TERRIBLY green portrait of a musician. then later in photoshop, make a black and white out of the green channel. thats the kind of stuff i like to do.
but most importantly.
get earplugs. then you can think by yourself in the club and just shoot and be happy and protect your ears so that you can talk to your grandchildren. 8)
don't worry, you can take out the earplugs to pick up a babe.
have fun
mitch