Opeth17 - Knowing your death metal tastes, you will adore The Karelian Isthmus and most likely Tales from the 1000 Lakes. Tales... has much more keyboard melodies, but they blend in perfectly. Karelian Isthmus is commonly seen as a cornerstone in death metal among the self-proclaimed "elite". Elegy is quite good as well, but this is more progressive stuff with tons of keyboards, acoustics, and clean vocals.
Aborym is black metal mixed with industrial. An acquired taste, but Aborym does it best, much better than Thorns, Dodheimsgard, Thee Maldoror Kollective and newer Mayhem. Fire Walk With Us is one of the pinnacles of this sound.