The answer is - Absolute music
As it is very different to what most play writers (not sure if correct word) would write about. it showed and developed ideas that people weren't use to seeing on stage making it very different.
I believe the correct answer is high relief.
When a sculpture is designed to be viewed from one side, and
protrudes dynamically from its background plane (at least half of their natural
circumference of sculpture must protrude from background plane) or is carved with
deeply incised marks is called high relief. For example, high-relief art was
made with marble by Francesco Grassia in Rome.
The sphinx itself represents strength and wisdom but it's believed to represent the Pharoah Khafre.
