A warning in the subject would be better than nothing. :) Honestly I think what you did by moving it to the top and recommending people listen to it while reading is the way to go. A lot of people read this stuff at work and other places where they likely don't want music coming over their speakers without a chance to prepare :)
EDIT: I hate web pages that do it too. I either click back and never read them or I turn off my computer audio and forget to turn it back on for awhile. It's not that I don't like it but if I'm reading something while I'm listening to a conference call on speaker phone, or my wife is asleep in the same room the music can cause issues. LOL