Anyone know what these crystals are?

Why were staff lines an important improvement to musical notation a. sl indicated rhythm b. sl indicated dynamics c. sl indicated pitch d. sl indicated meter

Write a 5-paragraph informative essay on a prominent latino / latino-american, of your choosing, who has made an impact. decide which prominent latino / latino-american you would like to write about. this person can be living or deceased. for example: frida kahlo, a mexican surrealist painter. how did she impact society and/or the industry? discussion question: in one paragraph, explain why you chose that individual to write about. what about this person interests you? what do you hope to learn about them?

Rihanna got a tattoo across her fingers while wearing a piece of clothing with the face of what rock star?