River Lights Chorus is a part of a much larger woman's singing organization - the Sweet Adeline's International. Sweet Adelines International is a highly respected worldwide organization of women singers committed to advancing the musical art form of barbershop harmony through education and performance. This independent, nonprofit music education association is one of the world's largest singing organizations for women. Members extend over five continents and belong to more than 500 choruses and 1,200 quartets. Today's Sweet Adelines choruses and quartets sing exciting a cappella four-part harmony music barbershop style. The music includes special arrangements of today's ballads and upbeat songs, popular show tunes, and even jazz.