I really like listening to progressive bands liek Caligula's Horse, Soen, Haken, Dream Theater, SymphonyX, TesseracT, Pain of Salvation, Riverside or Threshold, but I'm looking for alternatives with harder/heavier/black-metalish singing. I tried Nile, some Opeth, Omnium Gatherum, Devin Townsend or Cryptopsy.
Can you provide me with some ?