Men and women of various ages sit playing instruments in an orchestra while a similar group stand in the background as a choir .
It is improbable that an orchestra performs with a choir for their nightly show at the theater .
There is a better than even chance that an orchestra performs with a choir for their nightly show at the theater .
It is improbable that an orchestra performs with a choir for their nightly show at the theater .
An orchestra performs with a choir for their nightly show at the theater .