Why is iTunes duplicating my songs?
V 12.1.0.50
Ever since I've upgraded to a new MacBook Pro, iTines has started to duplicate my music. I'll use Tune Sweeper to get all the duplicates removed, and wallah, as I'm looking at my iTunes list, the music starts to duplicate right in front of my eyes. Every song has been doubled-up. I don't get it! I just checked again as I'm composing this, and now they're all tripled-up. This is frustrating!
Does anybody know what I'm doing wrong?
Thanks for the help in advance.
MacBook Pro (Retina, 15-inch, Mid 2014), OS X Yosemite (10.10.2)