Music from the films of Fernando Arrabal

I really like the music Arrabal uses in 'Viva La Muerte' and 'I Will Walk Like A Crazy Horse'. I know about the music of Danish schoolchildren that plays over the opening credits and throughout Viva, but rather the rest of the music in both films. I can't even find any release information about Crazy Horse - maybe nothing was released? Any help greatly appreciated.

b.gotts, June 24, 2008; 12:14 PM