Which branch of musicology largely studies the changes in western art music over time?

a. systematic musicology
b. music theory
c. historical musicology
d. ethnomusicology

what is orchestration?
a. the assignments of different musical lines to different instruments or groups of instruments?
b. a group of musicians that plays a symphony together at a musical concert
c. the composition of a piece of music
d. the creation of different themes in a piece of music

1) Which branch of musicology largely studies the changes in western Art music over time?

The answer is Historical Musicology

This branch attempts to explain and understand the evolution of music over time. This can be done studying the instruments, the performance, and the reception of that kind of music by the audience. Through this process, the scholar can determine the evolution of music.

2) What is orchestration?

The answer is The assignments of different musical lines to different instruments or groups of instruments.

It is the art to use several instruments of different kinds and different tones to create a piece of music.

Explanation: