The Main Street Live summer concert series continues this Friday night with music by three brothers called Flat River Band.The band consists of Chad Sitze, lead singer, guitarist and songwriter, Dennijo Sitze, lead and harmony vocals, electric guitar, mandolin and harmonica, and Andy Sitze, lead and harmony vocals, electric and upright bass.Music was an integral part of everyday life in the Sitze family. The brothers began playing music at an early age with their parents’ band, The Sitze Family. The family played venues such as Dollywood, Silver Dollar City, and numerous festivals, fairs and churches.