iOS and watchOS have a great little remote control app for iTunes, which lets you control iTunes playback. It’s useful when I need to play or pause music during a typing break, or if I get a phone call while I’m in another room from my computer or whatever.
It’s supposed to work with Music.app.
I mean, it’ll pretend to connect just fine, but it never actually shows any of the playback information, and the controls do nothing.
Bonus fuckery: iTunes Match completely messed up the Fingertips suite on They Might Be Giants' Apollo 18. Tracks were out of order (yeah, yeah, I know it’s supposed to be shuffled but my brain has a thing) and half of them were glitched out and truncated.