Polytonality exists when a. there are more than four notes in ...

[sjones]

Polytonality exists when
 
 

a. there are more than four notes in a chord
  b. two or more tonal centers are present at the same time
  c. chords are very dissonant
  d. chords contain lots of accidentals
  e. different sections of the orchestra each play one note in a chord

Question 2

Chords built in thirds (for example, CEG) became standard in twentiethcentury music.
 
 

a. true
  b. false

[potomatos]

Answer to Question 1

ANS: b.

Answer to Question 2

ANS: b.

[sjones]

Great answer, keep it coming

[kishoreddi]

Thanks for the timely response, appreciate it