Do you like barbershop music? It's a style of a cappella close harmony with four-part chords for every melody note.
I don't listen to it often, but from what I've heard it sounds pretty good. Do you know how old it is?
It dates back to the 1930s when barbershops experienced a revival.
Wow not that old then, do you know more about its origins?
It's not well documented, but I do know that it originated in barbershops and is usually performed either by a quartet or a chorus, which is like a choir, just different music.