Hey!
The music at the moment is still "Dancin' (A Catchy Rhythm)", and the parade is now once again "The Wonderful World of Disney Parade". This is basically the same parade that has been running for many years with the addition of a Snow White float - from mid 2003 to April this year it ran under the name "The Princess Parade" (to try and make it seem different - didn't work), but it seems they realised that name didn't make sense since they had added the Dumbo and Steamboat Willie back into the parade after a few months.
They have been refurbishing the floats though, which means at least it'll all be looking "wonderful" again, even if it is the same parade.
"The Wonderful World of Disney Parade" runs until September 30th, when it will be transformed into the Disney Villain Parade. And then on around November 1st it'll be changed into The Christmas Parade before the WWODP returns in January (a prediction based on previous years).
It's looking more and more likely all the time that 2006 could be our year for a new parade, and also then a new theme song as well.
If we do get a new parade, I'd bet it'll start in around April when Buzz Lightyear's Laser Blast opens - a bit like Mission 2 this year.
So you'll definately be hearing "Dancin' (A Catchy Rhythm)" when you're there, I hope that's what you were hoping for!