Flim, a Dresden-based electronic composer, has put out several albums of electronic but frequently classically-inclined music. “Hell 3,” obviously the third in a series of Hells, is, I think, his piano masterpiece. The original “Hell” is also excellent, but I think this one is more refined and more expressive.
He has a way of timing the notes that you hear the first note and get its impression, then the second note both modifies the first and stands on its own. If they were played simultaneously, or a hundredth of a second later, the effect would be lost.