Well a opera has no spoken dialogue and a musical they are speaking and singing so therefore it would be A.) Edwardo
I believe the answer is Monochromatic
A color scheme could be categorized as monochromatic if it's derives only from single based hue using additional tints, tones, and shades.
The usage of these will alter the brightness and the saturation of the color just like what we see in the painting.
The answer would be four major,minor,diminished, and augmented
