What is true of soft boxes? a. they have an umbrella on the frontb. the insides of the soft box are goldc. they pass through a diffusing material in the frontd. they let the light out both the front and the back of the device

C. they pass light through a diffusing material in the front

One is symmetrical, one is radial.

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.