Originally Posted by Randy
Oh, I don't think anyone's arguing that Metallica never had any elements of prog. And Justice for All clearly had the most prog elements of any of their albums and you can find some other elements of prog on Master of Puppets, but Metallica itself is not a prog band.
And although genres are rarely completely clear cut, the elements commonly associated with progressive rock/metal/etc. usually will put a band into one of the following modern genres: "progressive X", "experimental X", or "avant-garde X", sometimes falling into all three.
Originally Posted by TheKindred
That's just demonstrably wrong. MOST metal doesn't follow a verse, chorus, verse order. That would make all black metal, death metal, thrash, grindcore, metalcore, industrial metal, and on and on "prog."
Whereas "djent" is just a term given for a type of progressive metal. I mean, what people call "djent" fits every definition of "progressive" imaginable. Has odd time signatures, syncopation, polyrhythms, uses odd keys, heavily influenced by jazz, oftentimes uses non-typical instruments (such as saxophones), implements elements from a wide range of other genres (such as pop, dubstep, classical, jazz, R&B, etc.), has unconventional song structures (oftentimes changing drastically), and oftentimes has very long song lengths. And on and on and on.