The Beatles in Mono is a boxed set compilation comprising the remastered monaural recordings by the Beatles. The set was released on compact disc on 9 September 2009, the same day the remastered stereo recordings and companion The Beatles (The Original Studio Recordings) were also released, along with The Beatles: Rock Band video game. The remastering project for both mono and stereo versions was led by EMI senior studio engineers Allan Rouse and Guy Massey. The release date of 09/09/09 is related to the significance to John Lennon of the number nine.
The thirteen-disc (fourteen on LP) collection contains the remastered mono versions of every Beatles album released in true mono. The original 1965 stereo mixes of Help! and Rubber Soul are included on the CD version as bonuses on their respective albums. (In 1986 both albums had been remixed by George Martin for their CD release in 1987.) The box contains a new two-disc compilation album titled Mono Masters, which compiles all the mono mixes of singles, B-sides and EP tracks that did not originally appear on any of the UK albums or Magical Mystery Tour.
The previously unavailable true mono mixes of the four new Beatles songs released on the Yellow Submarine album ("Only a Northern Song", "All Together Now", "Hey Bulldog" and "It's All Too Much"), originally intended for a separate, but ultimately scrapped mono EP which would have also included a mono mix of "Across the Universe", are included on the Mono Masters compilation. Also omitted from this set, but included in the stereo box set, is a DVD containing the mini-documentaries included with the stereo remasters of the different albums. 2b1af7f3a8