Rush is celebrating the 40th anniversary of its groundbreaking 1978 Hemispheres album with several new editions of the legendary set. On November 16th, Hemispheres - 40th Anniversary will be available in four versions, including the Super Deluxe Edition, a two-CD Deluxe Edition, a three-LP Deluxe Edition, and the Deluxe Digital Edition.

Guitarist Alex Lifeson said in a statement, "Hemispheres was one of our most challenging and demanding records to make. From its inception in a Wales farmhouse where it was written over a four-week span to the very difficult mixing sessions in two London recording studios, it stands as a key transitional album in Rush's long recording history."

According to the press release: "The Super Deluxe Edition includes two CD's, one exclusive Blu-ray Audio disc, and three high-quality 180-gram black vinyl LP's. The set encompasses the Abbey Road Studios 2015 remastered edition of the album for the first time on CD, along with previously unreleased and newly restored bonus content consisting of the band’s masterful June 1979 Pinkpop Festival performance in the Netherlands. Unfortunately, the Pinkpop recording engineer failed to capture the first several minutes of '2112,' so an amazing, unreleased performance of the song during the Hemispheres tour from Tucson, Arizona in November 1978 appears here in its place."

The third bonus disc features a newly created mix of Hemispheres created using the original multitracks in 5.1 surround sound on a Blu-ray Audio disc. The disc also features four bonus videos three shot in 1978 as promo videos, and one of "La Villa Strangiato," originally shot at Pinkpop with newly restored stereo audio.

The Super Deluxe Edition of Hemispheres - 40th Anniversary includes as new a 40-page hardcover book with unreleased photos and new artwork by original album designer Hugh Syme; an extensive, 11,000-plus word essay by Rob Bowman; "The Words & The Pictures," a replica of the band’s rare 1979 UK tour program; a 24-by-24-inch wall poster of the newly created Syme art; a Pinkpop Festival replica ticket; a Pinkpop Festival replica cloth VIP sticky pass; and a replica 1978 'Rush' Hemispheres iron-on patch."

Geddy Lee says Rush wasn't always aware of how much they were progressing from one project to the next: "You feel like, when you're making it, that it's a huge leap. You set out to do something different -- you don't set out to make something similar. Y'know, it's always a question of experimentation, and how you feel at that moment, and you always seem to feel in a, quite a different headspace than in the previous time around 'Try to improve on something that maybe frustrated you about the last record. So, from the inside looking out, they feel like very big jumps. And then when you look back from a distance, some of those jumps were not so huge, and some of them were actually quite big."

AUDIO: GEDDY LEE SAYS RUSH HASN'T ALWAYS KNOWN HOW MUCH ITS PROGRESSED