I just found out about this a few minutes ago, but the sample implies that it's an album that re-arranges old Final Fantasy tunes for jazz bands. If you follow the link, bring your cursor to the bottom right and it's the one in the right-most corner. It depicts a girl sitting down and a bunch of old Final Fantasy V sprites sticking out around her. Do any of you have it, by chance?

http://www.square-enix.co.jp/music/sem/