John Lennon’s iconic 1971 Imagine LP is being reissued as a 140-track box set on Oct. 5 via Universal Music. The entire collection was fully authorized by Yoko Ono Lennon, who oversaw the project’s production and creative direction. “Imagine was created with immense love and concern for the children of the world. I hope you enjoy it,” says Yoko Ono Lennon in the introduction of the 120-page book that accompanies the set.

The legendary singer-songwriter’s most famous solo album will be released as a six-disc collection, with four CDs and two Blu-ray discs, and will be titled Imagine – The Ultimate Collection. It will include a brand new remastered stereo mix, raw studio recordings, outtakes, never-before-seen extras and a track-by-track audio documentary. The collection will also feature 5.1 surround mixes on Blu-ray and an updated quadrasonic mix for an even deeper listening experience.

The raw studio mixes allow listeners to hear Lennon and the Plastic Ono Band’s original, unadorned performances, and the previously unheard demos and isolated track elements will provide a rare behind-the-scenes look at the making of the album. The Evolution Documentary is the title of the track-by-track audio montage that details the process of each song from demo to master recording, even including chatter from the studio.

Imagine will also be released in other physical and digital forms, including a two CD Deluxe Edition, one CD remaster, double LP 180-gram heavyweight black vinyl edition and a double LP limited edition 180-gram clear vinyl. The digital format will include all audio from the four CDs, and the Deluxe and Standard versions will also have digital equivalents.

Eagle Vision will also release two films by John and Yoko on Oct. 5, Imagine and Gimme Some Truth, on DVD, Blu-ray and digital platforms. Both movies were hand-restored from the original film reels and remastered in high-definition, and their soundtracks have been remixed in surround sound by Grammy-winning engineer Paul Hicks. Both physical releases include never-before-seen extras, previously unheard studio mixes and a behind-the-scenes look into a photo shoot with David Bailey. The films will have a limited theatrical run with an exclusive Dolby Atmos music mix in select theaters and additional exclusive extras.

For more information and to preorder Imagine – The Ultimate Collection now, click here. Listen to the original, never-before-heard demo of “Imagine” below, and hear Yoko Ono perform the song circa 1986 via the Paste archives further down.