Mixed Quartets & Choruses
Here is some more information on MIxed (Mens & Womens) Quartets and Choruses
http://arneberg.com/bbshop/mixedbarbershop/2b.tech.faq.html
https://www.helpingyouharmonise.com/mixed_voicings
https://www.mixedbarbershop.org
https://docs.google.com/document/d/1BOsKJHq7Mh6809OWEhstASVkVdY-vgex6IcpzFqHjgQ/edit