Are you a player of Rock Band? I’m guessing it doesn’t matter whether it’s on the Xbox 360 or PS3 since each version is gonna basically be the same. Do you wonder how you’ll get that Flawless Groove achievement in which you need to score 100% notes hit as bassist, up-strums only and on Expert?
I would suggest that since it’s nice and easy, no point straining yourself for the sake of 10 GamerScore points and you can do it in solo quickplay mode too.