I love the change too, and I'd echo Spaw's praise of Jon's message. Brilliantly said, Jon.

Come up with a simple solution, that in a snap diffuses one of the biggest 'fights' here, and allows a user choice between the old and new system. Superb. The fact that a few still complain is I guess inevitable.

The only thing that I might suggest, is an easier way for those who prefer the 'old' system to hear about it.

I know that you don't want the top of the page too cluttered, but maybe a 'mix music and BS' link might help.