Not sure if this is the place to ask, but I have a bunch of music that I purchased from iTunes on a different Apple ID than the one I currently use on my MacBook Air. I want to download the music and put the physical song files on my current MacBook. Is it as easy as just logging out of iCloud and back in with the other Apple ID that I used to buy the music? Will this mess up my current MacBook setting though? Thanks for any help.