I haven't actually listened to Goblin, but isn't the point of making an album for it to be original?
For example when 36 Chambers came out, it was original, wasn't it?
On their initial release Enter the Wu-Tang, the group fortified their position in the rap world with a unique poetic take on dreary situations growing up on the streets of New York.
With slightly psychopathic notions and a knack for drug dealing and robbery, this group of nine sensational MCs debilitated the mainstreams idea of hip-hop music and held the creative doors open for countless rappers
Along with The Chronic, which many people think 'revolutionised' G-Funk and the Westcoast by all accounts, a game changer.
These are two obvious examples and there are countless others, but at the time they were released they were
original and
unique, but now there are many albums which resemble them and show influence from them. Just because an album is "original", doesn't mean that it's good, and it's hard to get the right balance of the two

Fuck a sig, i go accapella.