Hearing high quality chamber music doesn’t have to cost a fortune. Scrag Mountain Music artistic directors Mary Bonhag and Evan Premo finish their fifth season of donation-based concerts with three performances in Washington County. Joining the soprano and double-bass player are violist Emily Popham Gillins making her debut with the group, and returning artist Karen Ozounian (pictured) on cello. The program, titled “Fratres,” meaning “brother” in Latin, features “Small Looking Up,” a new piece by recent composer-in-residence Lembit Beecher, written from the perspective of a young sibling. The ensemble also treats classical lovers to works by baroque and contemporary composers along with Premo-arranged folk tunes.