History: Early Years Of The Beatles

Lawyers representing Apple Corps sued, in March 2008, to prevent the distribution of unreleased recordings purportedly made during Starr's first performance with the group at Hamburg's Star-Club in 1962. In November, McCartney discussed his hope that "Carnival of Light", a 14-minute experimental recording made at Abbey Road Studios in 1967, would receive an official release. McCartney headlined a charity concert on 4 April 2009, at Radio City Music Hall for the David Lynch Foundation with guest performers including Starr. The Beatles: Rock Band, a music video game in the style of the Rock Band series, was released on 9 September 2009. On the same day, remastered versions of the band's twelve original studio albums, Magical Mystery Tour, and the compilation Past Masters were issued.
Musical style and evolution
In Icons of Rock: An Encyclopedia of the Legends Who Changed Music Forever, Scott Schinder and Andy Schwartz sum up The Beatles' musical evolution: