ALLISON PARK — Greater Harmony Chorus of Region 17, one of the 28 divisions of Sweet Adelines International, will host a free Friends and Family night at 7:30 p.m. May 14 at Winchester Thurston North Campus, 4225 Middle Road.

Friends and Family night offers an opportunity for Greater Harmony Chorus to sing the songs they will perform at competition on May 18.

HARMONY — The Tiger Maple String Band will perform for an Earth Day celebration at 7 p.m. Saturday at the Center of Harmony, 253 Mercer St.The acoustic group includes Lori Burke on vocals and guitar, Justine and Alison Parker on fiddle, Barry Smith on banjo, and Fred Parker on guitar and vocals.Tickets are $20 for reserved seating and $10 for general admission. Visit thecenterofharmony.com/event/earth_day_music_2013.At the Harmony Inn, 230 Mercer St., Rick Bruening will be playing for an Earth Day celebration from 2 to 3:30 p.m. Saturday. Admission is free but donations will be accepted.Bruening is an area singer/songwriter who works in the genres of folk music, roots music and acoustic Americana.He will be followed by the Squirrel Hillbillies playing from 4 to 6:30 p.m. Saturday at Bottlebrush: A Gallery for the Arts, 539 Main St. Admission is free but donations will be accepted. Call 724-452-0539.The duo performs acoustic folk, country and blues featuring guitar, ukulele, mandolin, percussion and vocal harmonies.

PITTSBURGH — The Associated Artists of Pittsburgh will open its 102nd annual exhibition Saturday at the Carnegie Museum of Art, 4400 Forbes Ave., Oakland.The public opening will begin at 7 p.m. with an awards ceremony at 8 p.m.The exhibition will then be on display through June 23. It features 68 artworks created by 46 artists. For information, visit www.aapgh.org.