Mixed in stereo and 5.1 surround audio, this is a vast improvement over the 2009 remastered Beatles CD version. This is the first time the album has been remixed. The original four-track session tapes were the source and Giles Martin used the original mono mix produced by his father, Beatles producer George Martin, as a guide.

When comparing the 2009 remastered Sgt. Pepper CD to the remixed 2017 version, it’s like going from black and white to color. The 2009 remastered version almost sounds muted when compared to the 50th anniversary remix due to the fact that the sound of the vocals, guitars and drums are all brought to the front.

Paul McCartney commented on the remix in a recent Q&A with Japanese fans: “It’s very clear. So whereas the old mix was just sort of a general mix, this time you can hear every little instrument. And it was quite surprising to hear, ‘Ooh, I’d forgotten we did that.'”

The sound is so clear and enhanced that you can even hear McCartney shouting in the background at the end of “Sgt. Pepper’s Lonely Hearts Club Band (reprise).” You’ll also hear an unexpected addition to the end of “Within You, Without You.”

Ringo Starr also raved about the new remix. A friend of Ringo’s reported that “it originally was recorded on a 4-track with a lot of overdubs, which buried the drums. Now, the drums have been lifted and come through as they should. He was pleased.”

The remixed Sgt. Pepper CD is definitely worth getting, no matter how many previous versions you have. While you can just get the remixed CD by itself, here’s why you should get the Super Deluxe edition.

If you love to hear outtakes and get a glimpse into how The Beatles’ song process took place, you’ll especially enjoy Disc 2 of the Deluxe package. Here you get 18 tracks including five takes of “Strawberry Fields Forever” and five takes of “A Day in the Life.” These outtakes include an alternate attempt at creating the dramatic piano sound at the end of “A Day in the Life”, instead with all of The Beatles humming in unison. Note that Disc 2 on the Super Deluxe version is different from the outtakes included on Disc 2 of the 2-CD Deluxe set.

Disc 3 offers 15 additional outtakes for the diehard Beatles fan. Disc 4 offers the entire album in the original mono mix, along with 6 additional mono tracks including “Strawberry Fields Forever” and “Penny Lane.”

If you are not that interested in outtakes, the Super Deluxe package is still worth the money because of the lavish hardcover book and The Making of Sgt. Pepper documentary on DVD and Blu-ray.

The Making of Sgt. Pepper documentary was made for the 25th anniversary of the album’s release and contains great interviews with Paul, George, Ringo and George Martin. The highlight is watching George Martin sit at the engineering controls in the recording studio and isolate either the vocal or instrumental tracks on several of the songs and discuss The Beatles’ recording process.

The six-disc Super Deluxe set comes with a 144-page hardcover book the size of an album. The book includes chapters written by different writers on various aspects of the album. Topics include the design of the cover, the album’s musical innovations and its historical context by Beatles historian, author and radio producer Kevin Howlett; composer and musicologist Howard Goodall; music producer and writer Joe Boyd; and journalists Ed Vulliamy and Jeff Slate.