don't force her, even with music on, she will see straight through that, its terrible advice lol!
If she has fancied you for ages this will be a really big deal for her. she knows you want to kiss her, so there is no ambiguity there, she knows that, so you just need to be patient and when she wants to kiss you, i'm sure it will be obivous.
I know its sounds cheesy, but if you go a certain amount of the distance towards her and give her a chance to come the rest then it will all be a much happier event.
all the best
J