InToneNation: Let’s Keep It Barbershop This Year tag Key of C (learning tracks included) music at goodtags # 1875 #tag #barbershop #learning #tracks #harmony #singing #quartet #barbershopquartet #barbershoptag #acapella #vocals #collab #joinmycollab (If you use the learning tracks and make your own video please share it) #keepthewholeworldsinging