How did leonardo da vinci use unity in his art

Unity and variety:
In Annunciation the uniting factor behind the piece is its color scheme. The unity throughout the whole piece is created through the balance. Instead of having competing forces all around the painting, the colors works together from the darker tones in the grass and on Archangel Gabriel to the shadows inside of Mary’s room on the right. The darks in the trees in addition to their pointed shapes serve to move the eye up and out of the center as well as back into it

Unity is making something feel equal and balanced I’m pretty sure. Look at one of his pieces and figure out what made a piece balanced and if there were any certain similarities in multiple proves

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.