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.
Interesting, do you know any popular barbershop quartets by any chance?
I don't know any names offhand, but interestingly female barbershop quartets are often called "Sweet Adelines quartets", in association with the Sweet Adeline organization.
That's neat, what exactly is the Sweet Adeline organization?
It is a worldwide organization of women singers. It was established in 1945 to advance barbershop harmony through education and performance.