It has to do with the cosmogony and cosmology of the Tetracosmos, the world of Pantagrame.

Two important aspects:
- The inhabitants of Nelphis do not see the sky the same way we see it. Musical scores are not written the same in their country, just like they don't really speak English – all dialogue, writing and cultural references are assumed to be translated.
- The staves are not physically here. When cameras take pictures of the sky, it shows a strange, uncanny bedlam of intricate, moving, carved prisms instead. Such is the harmony of the Tetracosmology, such is the creative score of the universe... A complex, neverending structure with a perspective extending in more dimensions than we are used to. This mystical vision cannot be understood by the human eye, and it conveys the prisms into the closest equivalent it can find: music notation.