OK, for all the math freaks out there, this is a must have. This CD by one of the most famous Dutch sound artists with a resume as long as both my arms is one big mathematician's wet dream. The theory of a magic square is simple enough, but not so simple that I would be able to reproduce it correctly here. What Panhuysen has done is to transpose the theory to image and sound (all the details about this can be found extensively in the booklet). Sounds boring? Well, it may sound that way, but the result is great! Especially the resulting 30 minute sound piece is a sheer beauty. Sine waves are played according to the rules of the magic square and some additional rules and the result is a piece that is hauntingly evocative, yet dry as a desert. This strange contradiction gives the work its strength and tension.