Can't get a song I bought on my iPhone into my MacBook Air's iTunes.
I have synced my iPhone with from iTunes on my MacBook and I think this used to do the trick. The last couple of songs I've bought from my iPhone seem to be there permanently. This is a bad thing because while I sometimes get songs on my iPhone, I almost always play music from my MacBook.
MacBook Air, OS X Yosemite (10.10.1)