Isn't that a bit of a contradiction? Anyway, for some excellent progressive metal with very well done grim vocals (and good cleans too), check out Alkaloid:

Alkaloid - Carbon Phrases

Octavision is an interesting new project, featuring among others well known bass virtuoso Victor Wooten, and keyboardist Steve Weingart from Simon Phillips' Protocol:

Octavision - Three Lives

And, although usually filed under jazz fusion or jazz rock, the aforementioned Simon Phillips' Protocol project is definitely worth checking out, excellent compositions and top notch musicianship:

Simon Phillips Protocol - Catalyst (live)

Some of my favorites:

Darkwater, progressive metal from Sweden, these guys are super melodic and yet their songs tend to be super long as well

https://www.youtube.com/watch?v=KSph5SDudmM

Wilderun, probably best described as symphonic folk progressive metal from America, has both clean and growled vocals

https://www.youtube.com/watch?v=v1DOGUgPy7c

Myrath, oriental progressive metal from Tunisia

https://www.youtube.com/watch?v=M6GX5U42-mI

and of course Symphony X, I actually don't care much for their two newest albums, but their stuff prior is among my favorite

https://www.youtube.com/watch?v=_z3AHbjeb1U

That would be Periphery. Masamune still lingers in my mind...

Francium?

Allusion is hinting at something. He stated it directly. ;)

I figured it was worth stating since there's no reason people can't focus on their favorite genre, including progressive metal, in said thread.

What is this? Progressive? You are all blasfemous and will burn in the hell of real metal!! Leave the Hall right now!! (or so likes to say Manowar lol)

I thought that was the whole point of metal music.

Nobody mentioned Fates Warning and Queensryche yet? Come on people!

Static Acts

I love every single album of them but I have a soft spot for Perfect Symmetry.


Lets talk about Conception too:

Cardinal Sin

Great music.

only progressive mental people likes progressive metal :-/

Ah, well... there's nothing to brag about. You just get dealt the right atomic number.

Mentally progressive or progressively mental?

Metally Progressive

*collective groan* :D

Well now, this is turning out to be quite a prog metal knowledge repository... a big thank you to everyone that contributed.

Some more I've left out:

** Circus Maximus **
Namaste
Glory of the Empire

** Haken **
Darkest Light
Initiate
Cockroach King - probably the most... unexpected video I've ever seen for a prog metal song

Thanks for mentioning them. I've seen them live twice actually... a promising band with a good sound.