One of the best games of all time (and a personal favorite), Final Fantasy 7 also has a great soundtrack. It has its own wiki because of the countless covers, related movies and multiple OST releases.
With a soundtrack spanning over 4 hours and 80+ tracks, it's hard to pick a few favorites for listening here. Some of the tracks were covered by the composer's (Nobuo Uematsu) own coverband 'The Black Mages', which I added here.
There's so much going on in the game in terms of emotion, action, drama, humor and plot-twists; and for each and every scene and mood there's a perfect background track.