What dd realist artists like Gustave Courbet try to do with their art?

He added controversy to his paintings by addressing social issues in his work, that are more vulgar such as, the rural bourgeoisie, peasants and working conditions of the poor.

I hope that helped:)

Net  the suffix is your .com/.net/.org, and so on, i believe

The gregorian chant was a major cultural milestone in the middle ages. it was one of the first codified forms of music meant to be played as written, where previously it was difficult to mass-produce and disseminate any music. what's more, these chants were also some of the first examples of musical notation: the notes and bars of today's music sheets are a reflection of centuries of evolution beginning with these chants. it became official throughout the entirety of the catholic church, meaning that nearly all of europe followed this musical notation and styling.