"Other games come with a complete soundtrack for you to appreciate. Final Fantasy IV is one of those games. Composed by Nobuo Uematsu, these are amongst the most popular video game music in the world.
Whether you’re a fervent Final Fantasy fan yourself, or a proud audiophile, this music can be enjoyed by nearly everyone. The majority of the songs are on the classical side, with a flavour of rock, but other styles get thrown in the mix as well.... Thirty-five members of the video gaming music site, Overclocked ReMix, worked on Echoes of Betrayal, Light of Redemption; all of them half musician, half gamer. Together they played the 46 arrangements of the soundtrack, each artist giving his or her personal touch to the score."

via http://www.makeuseof.com/tag/final-fantasy-iv-free-remix-music-album/