Question about the Endless Setlist for you 360 Achievement junkies

[The Hungry Samurai]

If I play through the endless setlist on expert and my friend plays with me on medium difficulty, when we make it through the grueling marathon, will I gain the Platinum Artist Achievement for beating it on expert, or are we graded as a whole, and will I only get the Vinyl Artist Achievment for beating the Endless setlist on medium?

[devo193]

You get graded based on the lowest difficulty.

[The Hungry Samurai]

Awww......... Once again my friends will hold me back from true greatness. What a world what a world.

[Apples]

I did expert guitar/medium vocals with the Endless Setlist by myself... I understand the logic in restricting it to the lowest difficulty, but it still stinks a little bit. :(

[davilan3k]

Damn...:( I guess my wife has to step her game up. :D

[Fatal1ty_Reaper]

I play on expert and friends play on hard, so just a little bit more to go before we can all take on the endless setlist on expert! :p