I don't have the answer to your question... but DJ's (as Boo says) seem to be getting most of the action. I pretty well agree with Boo's lack of enthusiasm for most DJs but there are a few good ones. One thing is certain, I would be lost without my Yamaha 910. Arrangers are such an advantage for songwriters and the new styles and instrument tweaks Yamaha has provided are certainly better. I just placed a new ten song album with an outfit called Loudr. Not only do they sell albums direct from their site... they also provide them to iTunes, Pandora and other "retailers."