I just recently transferred all of my songs from my iPod to my MBP, but the option to copy everything to the iTunes Music folder when added to the library was checked, so I have twice the number of songs and I want to get rid of them. The problem is, I don't know which folder to delete, but all the music that is played is stored in the iTunes Music folder. How did that folder become the main folder, and how do I switch it back to the normal Music folder? Or can I?