Parts of some choral arrangements? Crossword Clue

 The answer to the crossword clue "Parts of some choral arrangements?" is RISER.

A riser is a raised platform that is used to elevate the height of a choir or other performers. It is often used in choral arrangements to create a more balanced sound and to make it easier for the singers to see the conductor.

The word "riser" can also refer to the individual parts of a choral arrangement. For example, a choral arrangement might be divided into four risers, each of which is assigned to a different vocal part.

Here is an example of how the word "riser" can be used in a sentence:

"The choir was arranged on risers so that they could all be seen by the audience."

I hope this helps!