Which is not an actor’s union?

Some of the characteristics found in most jazz are

A) syncopation and off beats. B) improvisation and riffs. C) blues scale and blue notes. D) all of the above

Which instruments come to the fore in Bartok's "Game of Pairs"?

a) violas, violas, and percussion b) bassoons, flute, and trumpets c) piano and English horn d) cellos, trombones, and tubas