FAMILY
Wellesley: Free events at the Wellesley Free Library, 530 Washington St. Wednesday, 10:30 a.m., Barbara Joose, author of "Grandma Calls Me Beautiful." Friday, 4 p.m., define-a-thon for grades 4-6. 781-431-1160.
Weston: Seminar on Contemporary Music for the Young features a concert for ages 4-12 on Saturday, 11:30 a.m., in the Berwin Building on the Rivers School campus, 333 Winter St. Two narrated pieces, "Returning Home to Mount Greylock" and "Arrows to the Sun," will be performed. $10, children free. 781-235-6840.
HAPPENINGS
Norfolk: Big Night Extravaganza, a celebration of amphibian migration, is next weekend at Stony Brook Wildlife Sanctuary, 108 North St. Tours every 15 minutes from 6:30-8:30 p.m. Friday, and 6-8:30 p.m. Saturday. Stroll lantern-lighted trails where costumed characters depict amphibians, or go indoors to see live specimens, crafts, slide show. $8, registration required. 508-528-3140.
Weston: Stamp Road Show offers expert review for collectors Saturday, noon-4 p.m., at the Spellman Museum of Stamps and Postal History, Regis College, Wellesley Street. $15. 781-768-8367.
MUSIC
Bolton: The Artus Quintet (below) performs Friday, 7 p.m. at Nashoba Regional High School, 12 Green Road. Free. 978-897-2461.
Natick: Vocalist Ruth Harcovitz presents "Songs from the Movies of the Thirties and Forties" Wednesday, 3 p.m. at the Morse Institute Library. Free. 508-647-6521.
Newton: Kate Finn and Dennis Alves perform music of Louis Armstrong, Fats Waller, B.B. King, Bonnie Raitt, and James Taylor on Friday, 11 a.m. at the All Newton Music School, 321 Chestnut St. $20 includes lunch. 617-527-4553, ext. 106; allnewtonmusicschool.com.
Weston: Spirit Fiddle, featuring fiddler Robin Warren and guitarist Brian Clancey, performs today, 3 p.m., at the Weston Public Library, 87 School St. Free. 781-891-8972.
Send Best Bets items three weeks in advance to Globe West, 111 Speen St., Framingham, MA 01701, or e-mail westarts@globe.com.
