How has Rock and Roll, Blues, and Jazz influenced popular music today?

Organum was first developed by religious singers adding another melody directly above the chant and mirroring the chant line. true false

This brooch contains a miniature picture of american statesman henry clay. likely owned by clay or his ancestors, this brooch is valued for what reason? a. scholastic value b. provenance c. cultural heritage d. market value pls hurry and you

Can someone me ( i’ll mark brainliest )