The trick with Nyman's music for this movie is that each piece is based around the theme of repetitiveness. All the tracks are very catchy, mainly because each piece consists of the same piece of music over & over again, the only change usually being a key change.
The music on Zed & Two Noughts is, in my opinion, the work of genius - it's my most favourite piece of movie music of all time.
Maybe not everyone will like Nyman's works here, but to anyone who hasn't heard it - I say it's pure brilliance. The best thing of all about the Zed soundtrack is that it really suits the film it was originally made for - "L'Escargot" in particular.
Since the movie is all about decay, the music has a sense of coldness and death. Some tracks sound like a musical description of somebody/something dying, and the titles of the tracks such as "Car Crash", "Swan Rot" and "Angelfish Decay" only go to prove this fact more so - not just because they describe various scenes from the movie but the music here has the power to make oyu imagine such things.
If you doubt how good this music is, it's probably best if you try and see the film first, so you can see how well the music and movie work together...