Here's an even better suggestion- avoid Coldplay altogether for Chopin.
takes a while to get used to the sight reading.
"Ok, I am not planning to learn this piece, but I ahve always wondered, what is the deal with the three staffs in Rach's prelude in C#minor? How do you do it? " Actually, at least looking at the version I'm looking at now, Rach's Op.3-2 Prelude doesn't have 3 staves, it have four. And I know that it is impossible to play all four staves at the same time. I'm assuming that you don't play all four staves but just pick one pair that would work for whatever you play after the prelude (it is, after, a prelude).