Tbh dude I think you should be all good, I mean you can't really talk while your listening to a band and when its quiet enough to talk you will already have a talking point with all the girls around you(if you're listening to the same band then your music taste has to be pretty similar - building good common ground). You'll be fine man, good luck

PUA:"Hey , that fucking rocked, I love hearing rock bands live[or whatever]"
HB:"Yeah.. me too"
PUA:"So, what other bands do you like?[I'm sure you can be more imaginitive lol]"
HB blah blah blah
PUA:"Nice, our tastes are really similar, except I really like Rolf Harris too[ get well in their with animal hospital hippy nature lovin shit or whatever]"