Appetitive: Plato and Egypt

In the Laws, Plato presents Egyptian art and music as a static set of arts rigidly regulated by custom. In the Laws, the Athenian Stranger presents Egypt as a potential model for proper regulation of the arts. This lead me to believe there was strict regulation of the arts. However, an Egyptology News article lead me to a New York Times article that explained that this impression of Egyptian art is false: there was a move toward the greater characterization of humans as humans rather than rigid forms following an specified pattern.