Why did the phrase a cappella Sistina (in the style of the ...

[jjjetplane]

Why did the phrase a cappella Sistina (in the style of the Sistine Chapel) eventually come to mean choral singing without instrumental accompaniment?
 
  What will be an ideal response?

Question 2

Debussy's most important musical innovation was:
 
  A) reinvigorating Baroque and Classical forms.
  B) infusing his music with non-Western rhythmic patterns and metrical structures.
  C) establishing a harmonic language that resulted in tonal ambiguity and uncertainty.
  D) adapting Wagner's system of leitmotifs into a form that was palatable to French audiences.

[fdliggud]

Answer to Question 1

because that was the performance style of the Sistine Chapel choir

Answer to Question 2

C

[jjjetplane]

Gracias!

[bblaney]

Thanks for the timely response, appreciate it