Hi Unitstructures,
I just stumbled back onto the forums, and I'd be happy to answer any questions you (or anyone else) may have about Duke as I'm currently a musicology student there. Regarding the funding issue, Tray has it right. My cohort is all generously funded, and you have no TA responsibilities your first year, so you're on fellowship; duties start in year two. The amount of funding doesn't change, only the places it comes from.
Also, Paul Berliner is emeritus now, but there is an active search to fill the vacancy. If there's anything else anybody would like to know, please feel free to get in touch.