OAKLAND NIGHTS -- 8-10 p.m. tomorrow. Local musicians Tres Amigos play a mix of Brazilian, Latin and popular music in an informal coffeehouse atmosphere. Historic Oakland Town Center ballroom, 5430 Vantage Point Rd., Columbia. Free. 410-730-4744.
HEART OF MARYLAND CHORUS -- 2 p.m. and 7 p.m. Saturday. All-male barbershop chorus performs classics, show tunes and patriotic songs. River Hill High School, 12101 Route 108, Clarksville. $12-$18. 410-788-8695.
DON KINNIER AND JUDY TOWNSEND -- 3 p.m. Sunday. The organist, playing a restored historic theater pipe organ, and vocalist perform. Sponsored by the Free State Theatre Organ Society. Spring Grove Hospital Center, Rice Auditorium, 55 Wade Ave., Catonsville. Free. 410-592-9322.
DANCIN' UNDER THE PEOPLE TREE -- 6:30-8 p.m. tomorrow. Instruction, with time to practice country and western line-dance styles, East Coast swing and the electric slide. Part of the Columbia Association's Lakefront Summer Festival. Columbia Lakefront, Wincopin Circle, Columbia. Free. 410-715-3161.
"A REALISTIC VIEW: A COLLECTION OF WORKS BY BRIGHTHAWK GALLERY" -- 9 a.m.-9 p.m. Mondays-Thursdays, 9 a.m.-5 p.m. Fridays, 9 a.m.-2 p.m. Saturdays. Features the watercolor works by Brenda Will Kidera and her students. Reception, 3-5 p.m. Saturday. Slayton House Gallery, Wilde Lake Village Green, Columbia. Free. 410-730-3987.
"HEROINES AND HEROES: MYTHICAL TO MUNDANE" -- 9 a.m.-8 p.m. Mondays-Fridays, 9 a.m.-6 p.m. Saturdays, through Oct. 6. A solo exhibit featuring oil paintings and ink drawings by Jessica Damen. Artist's reception, 5-7 p.m. Saturday. Howard Community College Art Gallery, 10901 Little Patuxent Pkwy., Columbia. Free. 410-772-4870.
"MIXED MESSAGES" -- 9 a.m.-9 p.m. Mondays-Thursdays, 9 a.m.-5 p.m. Fridays and Saturdays, and noon-5 p.m. Sundays, through Oct. 9. The childhood game of telephone is the inspiration for this exhibition. Thirty photographers were given a single visual message to translate. Reception with curators Maili Godwin, Jason Stoner and artists, 5-7 p.m. Sept. 24. Columbia Art Center Galleries, 6100 Foreland Garth, Columbia. Free. 410-730-0075.
"WINNIE COGGINS: VISION IN CLAY" -- 11 a.m.-5:30 p.m. Mondays-Fridays, 9:30 a.m.-12:30 p.m. Saturdays and by appointment, through Sept. 30. Reception with the artist, 5-8 p.m. Saturday. Artists' Gallery, American City Building, 10227 Wincopin Cir., Columbia. Free. 410-740-8249.
OUTDOOR MOVIES -- 8:30 p.m. tomorrow. Showing the Marx Brothers' "A Night at the Opera." Part of the Columbia Association's Lakefront Summer Festival. Columbia Lakefront, Wincopin Circle, Columbia. Free. 877-713-9674, Ext. 9030.
MID-ATLANTIC REPTILE SHOW -- 10 a.m.-4:30 p.m. Saturday, 11 a.m.-5 p.m. Sunday. A chance to learn about education and conservation with special guest Mark O'Shea, author and star of Animal Planet's "O'Shea's Big Adventure." 4-H Hall, Maryland State Fairgrounds, Timonium. $8; $12 for two-day pass; $6 for children 12 and younger and seniors; free for children younger than 5. 410-580-0250 or www.reptileinfo.com.
LAKE ELKHORN FESTIVAL -- 11 a.m.-6 p.m. Saturday. The 32nd annual event features games, pet show, pony rides, and arts and crafts. Lake Elkhorn Park, Broken Land Parkway, Columbia. Free. 410-381-0202.
"PINOCCHIO" -- 1 and 3 p.m. Sunday, Sept. 24 and 25. The Pumpkin Theatre performs the children's classic. Hannah More Arts Center, St. Timothy's School, 8400 Greenspring Ave., Stevenson. $11 in advance, $12 at door. 410-828-1814.
JEWISH FAMILY FUN FEST -- 1-4 p.m. Sunday. Singer Dean Friedman performs his Silly-Song Sing-Along. Event features food, crafts and games. Sponsored by the Jewish Federation of Howard County. Temple Isaiah 12200 Scaggsville Rd., Fulton. $10 per family. 410-730-4976.
"AIDA" -- 6 p.m. Tuesdays-Saturdays, 5 p.m. Sundays, 10:30 a.m. Wednesdays and Sundays, through Nov. 20. Love story about a soldier and an enslaved princess. Songs by Elton John and Tim Rice. Toby's Dinner Theatre, 5900 Symphony Woods Rd., Columbia. $41-$46; children 12 and younger, $27.50-$46. Includes dinner or brunch buffet. 410-730-8311 or www.tobysdinnertheatre.com.
FARM-CITY DAYS -- 8:30 a.m.-5 p.m. Saturday, through Oct. 2. This 16-day festival, "Routes to Our Roots," celebrates the links between urban and rural life. Includes farm open houses, horse shows, story times, hayrides. For complete schedule of events and locations, www.farmheritage.org. Free. 410-313-2022.
GHOST TOURS -- 8:30 p.m. Fridays and Saturdays, through November. Walking tour of historic Ellicott City includes tales of spirits said to have haunted businesses. Sponsored by Howard County Tourism Council. Visitor Information Office, Side Entrance, Main Street, Ellicott City. $8; seniors and children, $6. Reservations recommended. 800-288-8747 or email@example.com.
HARRIET TUBMAN DAY -- 10 a.m.-6 p.m. Saturday. The theme of this year's celebration is "Continuing the Legacy -- The Community, the School, the Teachers, the Students." Activities include an open mic with former teachers, re-enactments and tours of the Harriet Tubman Building. Atholton High School, 6520 Freetown Rd., Columbia. Free. 410-988-9701.
PUERTO RICAN FOLK DANCING -- 2 p.m. Saturday. Performance by Raices de Borinquen, a Washington-area troupe. East Columbia Branch Library, 6600 Cradlerock Way, Columbia. Free. 410-313-7700.
"HEAR MY VOICE" TEEN DAY -- 2-5 p.m. Sunday. The third annual event includes a performance by a local teen band, reading from a poetry contest winner and a DJ. The day concludes with the Columbia Teen Idol competition, with performers vying for recording studio time at Outta Control Studios/Above Ground Studios. Columbia Teen Center, 5853 Robert Oliver Pl., Oakland Mills Village Center, Columbia. Free. 410-715-3171.
COLUMBIA CLASSIC GRAND PRIX -- 10 a.m.-4 p.m. Sept. 24. Actress Jane Seymour is the honorary chairman of the 18th annual world-class equestrian show jumping competition. Howard Community College, 10901 Little Patuxent Pkwy., Columbia. $5-$10. 410-772-4450.
-- Compiled by KATHY ORTON