Answer:
14. A method is a succession of two distinct musical phrases usually rendered by different musicians, where the second phrase acts as a direct commentary on or response to the first. Strong resemblance to the verse-chorus form in many vocal compositions. Mannish Boy, one of the signature songs of Muddy Waters.
15. Spirituals (also known as Negro spirituals, Spiritual music, or African-American spirituals) is a genre of songs originating in the United States and created by African Americans. Spirituals were originally an oral tradition that imparted Christian values while also describing the hardships of slavery.
