The Beatles: Rock Band the "Rock Band" concept to Apple Corps, the music production company created by the Beatles, and its key shareholders Paul McCartney, Ringo Starr and Yoko Ono. Initial meetings were arranged with the shareholders using an early prototype of the game to garner their interest in the title. One stipulation that the Apple Corps shareholders required of Harmonix was that the game feature songs spanning the band's entire career. Harmonix subsequently created a more complete demonstration that used examples of music and artwork that they envisioned for the game. The five-song demo, which included an early build for "Here Comes the
Apple to the Core that destroyed the Beatles". In his overview of the most notable books about the band, for Rough Guides, Chris Ingham says that while it has long been out of print, it is a title "worth seeking out". Apple to the Core Apple to the Core: The Unmaking of the Beatles is a book by Peter McCabe and Robert D. Schonfeld, first published in the United States by Pocket Books in 1972. Released two years after the break-up of the English band the Beatles, the book covers the business aspect of the group's career, particularly the problems that befell their Apple