I sing in both a barbershop quartet and a barbershop chorus consisting of 15 members. Our large group performs about 10 times a year in a variety of venues including senior gatherings and rest homes. Our quartet also entertains seniors in like settings. We have a book of about 35 songs we sing a cappella from memory with only a note from a pitch pipe to start us off. We are invited a few times a year to sing the National Anthem to start a ballgame or other event. We never charge a fee. Mike