Rather than listing another song, I figured I'll talk about the bands I've listed to for the last year or so. Progressive Rock/Metal is my favourite genre in music. One of the best parts about it is the length of the songs and the couple minutes of build-up in certain songs. If the YouTube videos get hit by copyright, they're all available on Spotify for free.
Mastodon
Although not 100% classified as Progressive, a lot of their songs are pretty much progressive. This metal band have changed their tone across each album - they went from growling with their first album to a more lighter tone on the later albums and it works surprisingly.
[spoilerbutton]The Czar - Crack the Skye
Diamond In The Witch House - Once More 'Round The Sun
Sleeping Giant - Blood Mountain
The Sparrow - The Hunter
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Pink Floyd
My Dad is a huge fan of this band so I already had access to most of the Pink Floyd albums. Granted I didn't listen to them much until recently but still you can't deny how good many of their songs are. Current ones I've been listening to now (not including Shine On You Crazy Diamond, since I already mentioned it here) are:
[spoilerbutton]Comfortably Numb - The Wall
Hey You - The Wall
Money - The Dark Side of the Moon
Time - The Dark Side of the Moon
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Rush
Rush was one of the first progressive rock bands I've heard and a lot of their songs are still fun to listen to. Thankfully a lot of their most notable songs are on Rock Band.
[spoilerbutton]2112 - 2112
Clockwork Angels - Clockwork Angels
Red Barchetta - Moving Pictures
The Trees - Hemispheres
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Tool
One of my favourite bands in general. This is progressive metal (and don't worry there's no growling) and their music is rather dark but artistic. Unfortunately there was a legal embargo so they haven't brought out anything new in a while.
[spoilerbutton]Forty Six and Two - Ænima
Lateralus - Lateralus
Schism - Lateralus
Wings for Marie/10,000 Days - 10,000 Days
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Yes
Yes is a band I first discovered through Rock Band 3, and after that I've been rather amused by their Fragile album (though most of the tracks are pretty much filler). Heck Roundabout was also the closing theme song for JoJo's Bizarre Adventure's 2012 adaptation because the creator loves the track.
[spoilerbutton]Heart of the Sunrise - Fragile
Owner of a Lonely Heart - 90125
Roundabout - Fragile
Starship Troopers - The Yes Album
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I'm aware of Dream Theater, but I don't have sufficient knowledge of their songs to include them in this list.