I am a web dev with a business partner who's already built a niche web based music store for a country specific genre of musicians to sell their music online. We make about US$3000 per month using subscriptions. We were in the music biz and personally know a lot of these musicians.

My question is, would we make more money just charging these musicians to get on iTunes / Amazon /CDbaby as well as our site or should we continue distributing the music ourselves?