What artist was best known for his/her use of the drip technique?

The list of traits that creative people seem to possess, given in this chapter, includes all of the following EXCEPT:

A. sensitivity. B. efficiency. C. playfulness. D. analytical skill. E. organizational skill.

Which of the following does not characterize jazz singing in the 1950s and 1960s?

a. back phrasing b. a cappella jazz vocal ensembles c. use of jazz instrumentalists as accompanist d. repertory of songs preferred by jazz musicians