what do you use to listen to music?

[TheRambler]

I have all my music stored on my NAS and was looking at a few different ways of listening to my music on my ipad2, I currently use XBMC which is great, but I was wondering what others used and what the plus points where to their chosen app.
I've looked at Deck, but wasn't sure if it played music that wasn't stored on your iPad?

Thanks for your input guys and gals.