Interesting idea ... the question becomes which comes first: the 'customer' or the 'artist/label' ? In the case of iTunes, Apple had a captive customer base, and the size/credibility to bring the labels on board. Fibo has neither at this point, and I'm not sure a crowdsale gets you there. I'd love for this to work (and to short AAPL along the way) ... hmmm. If I see some momentum I could see myself jumping aboard ...
Also, in your shoes I would take some notes from Augur's crowdsale, and consider selling 'Fibo' coins that grant the right to mine and generate revenue. The crypto community likes to have their interest 'monetized' in the form of some type of fungible coin or token.
In this case i would lean in the direction of the artists come first.
We've talked with artists complaining they are not happy with subscription services, as they do not control the pricing etc.. Fibo is filling up the demand for a Pay-per-stream service where the artists can set their own price.
On top of that we allow the media content to be hosted in a distributed cloud storage and the users sharing/serving a content would get passive revenue for that, and in a certain way, users and fans would be happy to share their favorite songs/films.
Fibo's vision is not to create "one more" cryptocurrency, we achieve to be "the one" content marketplace, where users actually Mines something meaningful and not just proof of work waste.
There's a real opportunity of profit for any user without any initial investment, but those joining the Crowdsale before the public release will have the chance of being a Pioneer Miner, i.e. host, of certain media content permanently. Therefore, generating consistent revenue every time the user is online.