One of the things I found that helps, is to ask about the other person, and genuine be interested in finding out about them. Not just using it as a way of filling in the quiet spaces.. usually it generates conversation, either something you can springboard your own experiences off of, or helps trigger something else they'll say.
Either way, you show that you are genuinely interested in them, later have a chance to show that you listened (throwback references to earlier conversations during the data providing opportunites to establish ongoing jokes endearing you to them more), etc.
And chances are they'll have something interesting to say, so give it a shot
If you're interested in music, there's a whole world of converstaion to be had there. Find out their favorite bands, what's their favorite song and why, hypotheticals -- desert island which three cds do you take? gone to any good concerts? etc..