For most of the 20th century, the typical American church had a room containing rows of chairs, shelves stacked with music and cabinets full of robes of various sizes and contrasting stoles for sopranos, altos, tenors and basses.
This was a choir room, and these singers were led by a choir director.
Times have changed. These days, most up-to-date churches have “praise bands” with a few skilled vocal…