Desktop Music Client

I feel as though Google should make a desktop client for music a la iTunes. And yes, the Music Manager is there, but it almost feels terribly outdated what with iTunes or even WMP. I would like to make my music available for offline listening on my home computer. My phone/tablet has only so much space, so I have to be selective as to what I make available "On-device". With a music client, I'd be able to cache ALL my music, and thus manage it easily. I think it would be another convenience in the ecosystem, not so much a deal breaker. Play Music has advanced enough that now we can get to wishing for features. Thoughts?

 

You cannot do that with Play Music files. Those are stored as data and as far as I'm concerned they are inaccessible and I'm sure any way to gain access to them is too much work/effort. I don't see why Google doesn't create a Play Music client for desktops and allow it to be another authorized device that you can pin songs for "on-device" storage.