Number 4: Command and Conquer
Act now and do it. It's worth hearing. Composed by Frank Klepacki, (which makes him the second composer to earn two entries on this list) the soundtrack for Command and Conquer was a technical achievement at the time due to its use of the extra space offered by CDs to jump past the memory barriers of early game music.
Klepacki put that extra space to good use and produced a high quality and varied soundtrack that to this day for many sets the bar for his work. During his time composing this soundtrack, Klepacki was said to have listened to a large number of musical groups, from Nine-inch-Nails to Ministry, in order to build in his mind the musical style that would work with the game info he was given.
I can't really think of much else to say about Command and Conquer other then that it is a great soundtrack with a lot of variety and great listening potential for a variety of situations. Each song is a great blend of it's respective elements, the beats are solid, and the presentation is spot on. Oh, and you need to listen to it right now. Command and Conquer earns it's place at Number 4.
Number 4: Command and Conquer by Frank Klepacki
Number 5: Halo 3: ODST by Martin O' Donnell and Michael Salvatori
Number 6: Halo 2 by Martin O' Donnell and Michael Salvatori
Number 7: Planetary Pieces: Sonic World Adventure by Various Composers
Number 8: Super Mario Galaxy by Mahito Yokota and Mahito Yokota
Number 9: Final Fantasy: The Crystal Chronicles by Kumi Tanioka
Number 10: Command and Conquer: Red Alert 2 by Frank Klepacki
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