Music

The soundtrack for the game was Nobuo Uematsu's 22nd work for Square. Music from the game has been commercially released on an original four-disc soundtrack, a single disc album of selected arranged tracks titled Final Fantasy VII: Reunion Tracks, and piano-only arrangement of selected tracks. Popular pieces from the production include Aerith's Theme, a subdued and melodic character anthem, and One-Winged Angel, the first composition for the series to utilize recorded voices. The game's main theme, heard on the world map in Disc 1, is over 6 minutes long. Several tracks from the game have resurfaced in subsequent Square (and Square Enix) productions, including Kingdom Hearts and Final Fantasy VII: Advent Children.

At the time, the soundtrack for Final Fantasy VII was considered Uematsu's most ambitious. As a result of time constraints and the limited storage space afforded to him, Uematsu opted to utilize a high-quality Midi format for the music in the game. This was at a time when digital and Redbook audio were coming into their own, and some worried that the game's soundtrack would suffer as a consequence. These fears proved to be unrealized, as Final Fantasy VII's score is often ranked among the most popular and memorable in the series.

From : http://finalfantasy.wikia.com/wiki/Final_fantasy_7