Which of the following is a reason why there might not be many visitors to the castle above? a. it is bad luck in the japanese culture because of the damage from earthquakes. b. this castle is difficult to reach by foot and there is not sense of direction or progress as one progresses through the maze of steep walls. c. only monks live there and they do not allow visitors. d. some of the defensive traps are still activated and can cause serious injury.

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.