In comparison to swing era and bop drummers, free jazz drummers ...

[Cooldude101]

In comparison to swing era and bop drummers, free jazz drummers were:
 
  a. More structured and pattern based
  b. Less predictable and used a wider variety of timbres
  c. Softer and less active
  d. More predictable and used fewer tone colors

Question 2

The Birth of the Cool band was an ensemble organized by
 
  a. Gerry Mulligan.
  b. Miles Davis.
  c. Dave Brubeck.
  d. Stan Kenton.

[billybob123]

Answer to Question 1

b. Less predictable and used a wider variety of timbres

Answer to Question 2

b