Bold Riley will perform at Guthries, 115 Middle St., Lewiston, at 8 p.m., Friday, Dec. 4. Bold Riley comprises four friends with an affinity for folk music, both traditional and contemporary. John Gunn of North Yarmouth lends his rhythmic prowess on the clawhammer banjo, cajon, and bodhran while Michael Hayashida of Auburn wails on fiddle and vocals. Erin Sampson of Casco coordinates beautiful harmonies and Bold Riley’s public presence, and Julia Edwards of Bridgton sings and accompanies with guitar and accordion. The group plays  a wide range of music from Americana classics and originals to acoustic takes on modern folk music. There is no cover charge. FMI: 207-376-3344.