Once the show opens, the director's job is done and the stage manager takes control, running the show each evening and ensuring that throughout the run, the production
continues the way it was directed.
True
False

The answer to your question is a. true.

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.