Rock Band 3 is the next generation of the ultimate social and interactive music gaming platform developed by the categorys leading pioneers, Harmonix Music Systems. Featuring innovative game modes and instruments, Rock Band 3 will change the way fans think about and play music games. The Most Music. Period. The Rock Band 3 disc soundtrack contains 83 of the best bands from around the world, including bands that have never appeared in a music game, and support for existing Rock Band tracks (previous Rock Band discs, downloaded songs and track/artist packs). Plus, Rock Band 3 will give you immediate access to a library of over 2000 songs by launch, with new content added weekly. Rock Bands gigantic music library dwarfs that of Guitar Hero or any other music game Redesigned Music Library - Create and save set lists, and share them with your friends online. Improved song sorting makes it easier to find the songs you like-and hide the songs you dont. Song recommendation system will recommend new songs for you based upon those you already like to play Expand the Band - Keyboard and Vocal Harmony. In addition to guitar, bass, drums, and solo voice, Rock Band 3 introduces 3-part vocal harmonies, and-for the first time ever-keyboard! Up to 7 players can play together for the ultimate social gaming experience Go Pro - Take your passion for music to the next level: Rock Band Pro lets you develop real musical instrument skills through gameplay!