Before you ship that demo to them dudes in the office
Come test your skills for real in hell's fortress

from Outerspace (Ft. Immortal Technique & Vinnie Paz) – Angel of Death Lyrics on Rap Genius

Meaning

Basically, if you think your demos good enough to get you signed, try comparing it to Outerspace. Hell’s Fortress could also mean Philadelphia because that’s where Outerspace and JMT are from. most of the guys with the Philly sound are friends with each other. so Crypt could mean come try and compare yourself to any one in Illadelph. (OMG that would’ve been an awesome line!)

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