Have you ever listened to a Barbershop quartet or Sweet Adelines Quartets, they are so beautiful to listen to
No, I've never heard of them.
It is an international orgnaization that helps further the barbershop harmony music through education and performances
That's really interesting. Tell me more.
Well the Barbershop vocal harmony is an a capella close harmony style of music with so they only use their voices to sing, like Pentatonix
I bet that's really hard to do.
They usually have 4 people doing different parts like the lead singer, sings the melody, the tenor harmonizes and so forth, that probably helps a little bit
Do they have someone singing bass as well?
Yep, they have a bass that sings the lowest notes and also a baritone that completes the cords
I can't imagine how hard it must be to sing like that.