The artist Jacob Lawrence used in his series of paintings portraying the Great Migration because he preferred the "raw, sharp, rough" effect of the colors.

tempera

Explanation: The artist Jacob Lawrence used tempera in his series of paintings portraying the Great Migration because he preferred the "raw, sharp, rough" effect of the colors.

hard bop is an extension of bebop that was kind of interrupted by the cool sounds of west coast jazz. it experienced its revival in the 1990’s.