Baroque is a game I've never even seen before, but Baroque Original Soundtrack is an album I'm very glad (and fortunate) to own. The soundtrack itself is, for the most part, "noise" (as some people like to call it). But I'd say that Baroque fits somewhere between the Silent Hill and Resident Evil scores - less "noisy" and more melodic than Silent Hill, and a few notches "noisier" and less melodic than Resident Evil. Baroque's score has carved a perfect niche in my opinion. It'll appeal to those who take a liking to "noise", as well as those that thrive on melody.
The opening track, "Great Heat 20320514" is a hard, edgy, industrial piece that really comes together nicely. A similar track, "Baroque 205 Blue", is a pounding track with a few wailing electric guitar riff samples. But "Sanctuary" (track 3), is more akin to what most of the music in Baroque is like - dark, brooding ambience, with many sound effects (such as dripping water, wind, and even a locomotive in one track) added in. The music is never really scary, but it does create a feeling of uneasiness. There are even some choral tracks, "Into our trespasses" and "Multiplex", both of which are really nice and maintain that dark, "uneasy" feeling.
What really holds the soundtrack together to me is the main theme. It's hinted at or played time and time again in most of the songs before you hear the full playing of it in "Hold Baroque Inside". I think Baroque's main theme is a gorgeous song. "Hold Baroque Inside" maintains the edgy qualities of the rest of the soundtrack, and even has hints of the first track ("Great Heat 20320514"), which pop up a few times at the beginning of the song. The remainder of the piece features the main theme performed on a piano with a nice, surreal underlying rhythm. It's a beautiful song, and I hope someday to find sheet music of it.
Masaharu Iwata is one of my all-time favorite composers, and I'm glad to hear that he can do other types of music, instead of the classical/orchestral style of music he's created for the Ogre Battle series. His Baroque OST has really become a favorite of mine. I usually listen to it when I'm going to bed, and let it play on throughout the night. I can't help but wonder sometimes what type of game Baroque was, or what was happening in the game during the time some of the tracks are being played. I would encourage everyone to give Baroque Original Soundtrack a try.