Anteater

Anyone who says Queensrÿche aren't progressive needs to go listen to Rage For Order or The Warning. Those are the two albums that established them as THE progressive metal band of the 80's, so much so that even Judas Priest, Iron Maiden and others were borrowing from their playbook by the end of the decade. I don't think the Ray Alder-era of Fates Warning or Dream Theater would exist without them either. Operation: Mindcrime has some legit proggy moments on it like the 10-minute 'Suite Sister Mary' or closer 'Eyes Of A Stranger', but it isn't the reason why they're considered to be influential.

My vote: Voivod & Opeth

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The Batlord

I'm liking you more and more.

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Hypocrisy

I have boh Warning and Rage For Order.. not what I consider prog at all. If they are prog then so is Black Sabbath with their jazzy swing time rhythm signatures & Iron Maiden with their fast early Genesis with balls and edge attitude


Just saying... there are a lot of sort of proggish bands that i don't consider actual prog bands.

Trollheart

You are literally the only person I have ever heard who has compared Maiden to Genesis!

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Trollheart: Signature-free since April 2018

Hypocrisy

Iron Maidens timing sigs are actually quite proggy ...although more by way of an early Rush influence who were influenced heavily by early Genesis. So it may sound funny to you but musicians will understand my meaning. Metal itself is quite 70s prog influenced either directly or indirectly.

TechnicLePanther

Queensryche had prog infused throughout their albums, whereas Sabbath:

1. Had their proggy elements before prog was really a thing.

2. Only had proggy elements in their early albums, most notably Paranoid.

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Many have tried to destroy it... but... true evil never dies. It is only... REBORN

SUGGEST ME AN ALBUM - I'm probably not going to listen to it but I will if you bother me enough.

Anteater

Iron Maiden are actually pretty proggy by whatever standard something might be considered as such....they have loads of longer songs even on their first few albums, not to mention Powerslave.

It's not the changing time signatures that determines whether or not something is progressive. It's an attitude, the inclusion of off-the-beaten-path nuances and approaches even in the production or song construction. For instance, go listen to something like 'Neue Regel' off of Rage For Order: that song is nearly a decade ahead of its time with the way the vocals are processed and utilized at the start and the way the metal and electronic elements interact. Nothing else sounded like it in 1986 or in previous years either. And on '84's The Warning you have the nearly 10-minute long 'Roads To Madness' and 6-minute 'No Sanctuary'. I'm pretty sure those aren't traditional heavy metal songs, nor are they pop. So what does that make them if you don't consider them progressive in some way?

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Hypocrisy

^^^ By the definition that you are going with ...ie moving forward in some new untread musical path...then those songs would definitely be prog. I see that more as experimental rather then prog. To me the definitive progressive elements in regards to music would be quirky, jazzy timing elements and or classic structures ,influences. Although that is a bit of a simplic overview. I do see what you are getting at though.

Fates Warning
Opeth