Ok I have a library of about 30ish gb and my wife has a library of 30ish gb. We share one apple ID for iTunes Music. Probably half of our libraries is overlap. I was thinking about buying iTunes Match and then have it scan both our libraries. How good do you think the duplicate detection is? Would I end up with a crap ton of duplicates? I figured this would end up as a good way for us to combine our libraries into one library and have us both be able to access all of our music on our iPhone's. I have already went through and completely re-organized and re-tagged all my music. I would obviously do the same to hers before even attempting this. What do you guys think good or bad idea?