Answer:
Composers often use indications as headings for the major sections of larger works, which are known as movements.
Explanation:
Movements usually take their name from the tempo of the movement, although the composer could choose to give it an unique name. Movements can be played individually, but together they create a larger work.
Wow this seems like a cool class. Ikr though I’m sorry
Top left: B A G
top right: C A G E D
bottom left: B E A D
bottom right: E G G
i believe it is a tint or shade