The 4 indicates admission is $5 or less, or free. Full-price admission is listed; the * denotes discounts (or free) for students, seniors, military, members, children and/or advance purchase. Call venue for details.

CONCERT

ANTHONY MAROUDAS AND MICHAEL RUSSELL, performing works by Mozart, Brahms and Khachaturian; 4 p.m.; Atherton Performing Arts Studio; $25*; 955-8821.

STAGE

"THE PIANO LESSON," by August Wilson, directed by Jeanne Wynne Herring; 2 p.m.; The Actors' Group; repeats 7:30 p.m. Thursdays-Saturdays, 2 p.m. Sundays through March 7; $20*; 722-6941, www.taghawaii.net.

ETC.

4 PICKIN' IN THE PARK, hosted by Bluegrass Hawaii Traditional & Bluegrass Music Society; 11 a.m.-4 p.m.; Wahiawā Botanical Garden; free; www.bluegrasshawaii.com.

4 20TH ANNUAL HAWAII COLLECTORS' EXPO, art and antiques exhibits with door prizes daily; 11 a.m.-5 p.m.; Blaisdell Exhibition Hall; $4*; 486-4766.

LIVE MUSIC

DAVID ASING; 4-7 p.m.; Ala Moana Center, Mai Tai Bar; also DJ AUDISSEY; 9 p.m.-12 a.m.; 947-2900.

STARR LUTU, LENNY KEYS AND TOMMY ARSISTO, jazz; 5:30-8 p.m.; Star of Honolulu, Aloha Tower Marketplace, Pier 8; 983-7827.

ACOUSTIK PLAYGROUND; 6-9 p.m.; Hyatt Regency Waikiki, Elegant Dive; 923-1234.

MAILANI MAKAINAI; 6-9 p.m.; Kani Ka Pila Grille, Outrigger Reef on the Beach; 924-4990.