So I have a lot of my music saved on an external harddrive. I've added all this music into itunes. I want to free up some space on my external harddrive. So my question is what would happen if I were to delete all that music saved on my external? Would it effect itunes in any way even though I can play all my music in itunes just fine without it asking me to locate the original files? Would appreciate any responses as I'm just looking to free up some space.