I’m guessing it wants you to fill in two major key signatures like D major and C major also with two minor key signatures like A minor and B minor. I picked those key signatures because A minor is the same as C major but it starts on A and D major and B minor is the same but it starts on B
Answer:
Empty spaces
Explanation:
Elements that attach to a solid background could be made by blank spaces
Hello
they differ because of there belifes
have a nice day