I would love to be able to put music "ads" in my blog feed. Seriously, is that do-able? You pick a song you love, and at the end of each post an "ad" appears fo

I would love to be able to put music "ads" in my blog feed. Seriously, is that do-able? You pick a song you love, and at the end of each post an "ad" appears for it, which is really an embedded music player and allows a person to play 30 seconds of it. If someone clicks through and buys it, I get a commission, ala Amazon.