You're welcome. If all else fails then Opeth is usually the one that opens the door for many (it certainly did for me). Their works on Still Life, Ghost Reveries and Blackwater Park are really good for adjusting the ears of newcomers since the structures are very well intertwined with ethereal softness and crushing heaviness and the songwriting itself is top-notch.

Also it's worth mentioning that the two songs—and the music videos that accompany them—that finally had me understand the imagery and aesthetic of Death Metal (as well as appreciation for the music) was Blessed Are The Sick and God Of Emptiness by Morbid Angel.

They opened my ears back when I thought Death Metal was Screamo with old-fashioned guitar playing (an observation that would trigger many a fan).