Ephel Duath are a weird hybrid beast from Italy. They are strange amalgamation of metal and jazz, and on their earlier releases black metal as well. If you like bands like Cynic, Atheist, Death or that whole death jazz scene from Florida in the early 90's, you very well may like this.
To me "The Painter's Palette" almost sounds like what John Zorn would do to a death metal band if left in a room with them for a day. No doubt about it, Ephel Duath is unique, even for experimental metal, and this is one of my favorites from them.