There's not much to get. The purpose was to express that I feel music cannot be qualified by year, but rather it improves by default as time progresses (considering the greater diversity inherent to added innovation and such).
You have to convert the files into .mp3 files. This can be done on iTunes. In iTunes, click "File", then "Add File/Folder to Library". Find the music you want to convert from your music folder, and select it. iTunes should prompt you to convert the files before adding them to the library.
looks like you dig that Barcelona thing too