Their reasons for doing so seem to be that the depth of the colour is a good indicator of how free a male is of parasitic infection, and thus how good a father he will make.

ECONOMIST: Birds do it, bees do it | The

Many of the same concerns are there: an emphasis on tempo as well as harmony as a structural force, a laser-like ear for instrumental colour, and above all, the creation of a vivid depth of experience for performers and listeners.

ECONOMIST: Elliott Carter