I agree with James and Phil, the piano part of Clubbed to Death 1 (not Part 2) is a variation over Enigma Variations, Op. 36.

If someone is still interested in knowing the samples used for this song, you can look at this page:

http://www.whosampled.com/Rob-Dougan/Clubbed-to-Death/

The 4 samples listed there are:

- It's a New Day by Skull Snaps (1973)
- Enigma Variations, Op. 36 by Edward Elgar (1899)
- Jupiter, the Bringer of Jollity by Gustav Holst (1918)
- Arrest the President by Intelligent Hoodlum (1990)

I can confirm these samples were indeed used in various parts of the song (strings, rythm, some sound effects).

A last one I could find is: "ESG: A South Bronx Story (ufo music)" which is used as a sound effect throughout the music (the background glass shaterring sound effect).

I also recreated a full score of the song as a midi file. I did my best to get the precise rythm and melodies, and also to recreate the background sound effects (even if it's impossible to get a perfect recreation since it's not possible to use samples in a midi file).

You can find it here:
http://speedy.sh/NCBer/Rob-Dougan-Clubbed-to-death-Kurayamino-variation.mid

And also on nonstop2k and free-midi.org. The key is in A-sharp minor 11th.

> Chopin's Prelude No 4 in E MINOR is the piece of music used in Rob D -
> Clubbed to death Part 2 - THIS IS FOR DEFINATE - Not Part 1 which is the
> one used on the matrix - Part 2 is a phenomenal piece of music, better
> than 1 if you ask me. I've only ever heard it used on the 1995 Cream Live
> 2 James Lavelle mix, which is probably the best mix of its kind ever made.