I have a large library of music (about 1300 songs) that I have collected over the years via CD nab other means. I want to get iTunes Match but I want to be sure of a few things. 1. I want to keep a separate copy of my own music - should I just copy all the iTunes Media->Music to an external drive? 2. After iTunes Match is finished matching my music is it kept in the cloud? 3. Can I download from the cloud to my library those songs that have a better bit-rate and keep them even after I stop the service? I am very anxious because some of my music is not replaceable. Thanks!!