[Frank Klepacki] is well known for [Command & Conqueror] soundtrack released back in a mid 90s. He brought awesome progressive sound to PC platform, which was pretty innovative especially after FM bleeps’n’blops of the 80s era. Don’t get me wrong, i don’t have anything against frequency modulation in games. [UFO X-COM: Enemy Unknown] is an excellent example of how music should be done when you are squeezed by multiple limitations like waveform shapes, file size and so on.