I have a question about iTunes match. I have a Dell laptop that I used for a few years. It has all my music on it. About 400 albums. Now about 300 of those albums I downloaded and got free. I currently have a macbook air. Now my question is if I buy iTunes match for a year on my Macbook air will all those songs from my other laptop be available on my Macbook air via iTunes match? I don't really understand. Thanks.