put your songs up anywhere you like but the only tome someone will download them is when yu tell them where to go, all you do then is work for itunes etc build their mailing list up let them introduce another band to the person who buys your song and you make next to fook all from your song download, the only place someone should download your song from is indi store at the moment then your own site which will be linked to fan creator, that way you keep control and most of the cash