The "unprecedented, experiential progression through and celebration of the music and artistry of The Beatles" will allow players to tackle a cavalcade of culturally monumental songs via mic, drums and guitars, all included in a Limited Edition Premium bundle for $250 (all platforms) and "modeled after instruments used by John Lennon, Paul McCartney, George Harrison and Ringo Starr throughout their career." Standalone guitars will also be available ($100), as will separate game discs ($60, all platforms) for those already surrounded by Instrument Protagonist equipment. According to the press release, The Beatles: Rock Band will be compatible with all prior Rock Band instruments and "other current music-based game peripherals."
And now we wait until September. God, we hope the person behind the store counter is named Jude. It's going to be SO funny when we ask for a copy.
Update: Speaking to an MTV representative, we confirmed that despite the "collaborative decision" to append the Rock Band brand, The Beatles will remain a "custom, standalone, dedicated game experience." MTV and Harmonix are not willing to discuss matters regarding DLC or song importation yet.