get the pandora,take the girl to the flicks,eat out and walks in the park,the band is just a band,i have been to quite a few gigs including one of my favs rem but i would not have taken a girl there and yes the concert is a nice memory but the first few months going out with a girl are also great memories and your panda will just turn up one day when you are madly in love and not thinking about it.
so you get nice memories,girl and pandora,no gig tho but unless you are mad about this band it wont bother you so much and if you are mad about this band then taking a girl might be more weird and anoying especialy if she doesnt like this band,it could put her off you if she doesnt like your taste in music from the offset,you get her in bed a few times first then she will oversee the poor taste in music from her point of view.
i am rambling on now,do what you feel.