deliverance
ecnareviled
i'm not really into all that undergroud/obscure stuff, in either DM or BM, but essential DM in my opinion:
Morbid Angel - Altars of Madness; Blessed are the Sick; Covenant; Domination
Death - Leprosy; Spiritual Healing; Individual Thought Patterns; Symbolic
Bloodbath - Resurrection Through Carnage
Edge of Sanity - Crimson I; Crimson II
Monstrosity - Imperial Doom; Millenium; In Dark Purity; Rise to Power
The Crown - Deathrace King; Crowned in Terror
old records from the following bands: In Flames, Soilwork, AtG, Arch Enemy
and of course, Opeth - MAYH
Moonlapse, I know you've heard nearly everything in there, but this was just in general, for people just trying to get into DM. Look further into MA though, and try out Monstrosity, if you haven't already.
Morbid Angel - Altars of Madness; Blessed are the Sick; Covenant; Domination
Death - Leprosy; Spiritual Healing; Individual Thought Patterns; Symbolic
Bloodbath - Resurrection Through Carnage
Edge of Sanity - Crimson I; Crimson II
Monstrosity - Imperial Doom; Millenium; In Dark Purity; Rise to Power
The Crown - Deathrace King; Crowned in Terror
old records from the following bands: In Flames, Soilwork, AtG, Arch Enemy
and of course, Opeth - MAYH
Moonlapse, I know you've heard nearly everything in there, but this was just in general, for people just trying to get into DM. Look further into MA though, and try out Monstrosity, if you haven't already.