What jazz instrument was NOT considered unusual before its use by cool-oriented bands?

Which is LEAST true of the Christos?

a. They are Conceptual artists. b. They recycle their materials. c. They accept no financial patronage. d. They raise money by selling drawings, collages and models.

With reference to the melody,

A. CD 1:17 presents a more decorated version of the original melody than CD 1:18. B. CD 1:18 presents a more decorated version of the original melody than CD 1:17. C. both CD 1:17 and CD 1:18 emphasize unaltered versions of the original melody. D. both CD 1:17 and CD 1:18 present the same decorated version of the original melody.