The Chariot Swing EP is still my favorite. More of a beauteous form of "brutal-prog" if you must ghettoize it into a made-up genre. Later stuff is more brutal. If you know about the player-piano scrolls of Conlon Nancarrow, then you know where this unusual style of piano comes from. (Also, that Dutch 90s manic piano prog group Alboth! is a notable reference point.)
Pretty diversely influenced stuff. Mindboggling. Certainly not for everyone.
http://www.myspace.com/silentist
Try this other Portland band for something kinda similar...
http://www.myspace.com/thebettertoseeyouwith