One of the African influences on jazz, this special type of vocal tradition permeates jazz styles as well as rock 'n' roll

Which of the following is a structural system in which the wall supports itself?

a. Post-­??and-­??beam
b. Skeleton frame
c. Bearing-­??wall
d. Suspension

What happens to the level of pitch as the tenor sings the word “plain”?

a. It stays about the same b, It gradually moves higher c. It gradually moves lower d. It ascends and then moves lower