I'm admittedly not a particularly big music person but I'd have trouble seeing subscribing to multiple music streaming services unless one of them was for some obscure sub-genre I was really into. A lot of music seems to be ambient. If there's some artist I really need, I'll but a CD now and then.

Mind you, I don't like video being fragmented but that's a more deliberate choice a lot of the time for me. I'll subscribe to a few places based on available and original content--somewhat grudgingly to be sure--but I accept those are my options.