Q: I’m about to move from a PC to a Mac, and obviously, my iTunes library will move as part of the transition. Somewhere along the way with my PC, I accidentally established two separate iTunes accounts – one with my user name, and one with that same user name followed by an email address. Songs have been purchased under both user names and those songs are all on the PC. But in switching to Mac, I’d like to try to simplify things and…
