Hi Steve Jobs opened the itune store and instantly 70% of the record sales were made through the platform. The simple idea "sell digitally the whole album and singles for a $1". People overlook simple ideas thinking complicated ideas are big ideas. Simple Ideas can turn into big ideas with execution just read Steve Jobs Book.
Just out of curiosity where the hell do you see the potential for innovation ? In production , distribution or customer service ?
Music is pretty slammed online, at least for niche marketing. If you have a seriously innovative, and spectacular idea, than ya,no better market than music to go viral. Otherwise I think there are a lot of better niches online for starting internet marketers and others to get into.