Tommy Keys' LI blues: Made in the shade

WHAT Tommy Keys brings his barrelhouse boogie-and-blues piano to a shady spot at the arboretum for a matinee concert, part of an Islip Arts Council series. A member of the Long Island Blues Society, Keys will accompany his own soulful vocals in his band's version of foot-stomping New Orleans jazz. His latest CD is "The Man in the Moon." Bring a chair or blanket if you like, but you're likely to find yourself on your feet, swaying to the beat.

WHEN | WHERE 2 p.m. Sunday, Bayard Cutting Arboretum, 440 Montauk Hwy., Great River

INFO Free ($8 parking fee); islipartscouncil.org, 631-224-5420

Art: Andrea Kowch show in Sag Harbor

WHAT Paintings by Andrea Kowch featured in this month's cover story of American Art Collector bring an eerie vision to the East End gallery scene. Using Middle America as her muse, Kowch, who grew up in Michigan, draws the history of a particular place -- invariably rural -- to the surface as it collides with a new reality in layers of metaphor and moodiness. The faces of her women may remind you of characters in a Tim Burton film. "The real and unreal, history and the present, opposing emotions, endings and beginnings, nature's seasons and cycles . . . is present at the core of my work," Kowch says. "It's my past and my present magically fused." Nature painting by Kevin Sloan accompany the Kowch show.

WHEN | WHERE 11 a.m. to 8 p.m. Thursdays-Mondays, through Aug. 5, Richard J. Demato Fine Arts, 90 Main St., Sag Harbor

INFO Free; rjdgallery.com, 631-725-1161

Theater: 'A Chorus Line' indoors and out

WHAT BroadHollow Theatre Company gears up for its annual summer-in-the-park musical with the final BayWay Arts Center performances of "A Chorus Line" before it moves to Elmont. The 1975 Michael Bennett-Marvin Hamlisch Tony winner about Broadway hoofers auditioning for a show plays Huntington's Heckscher Park next Sunday.

WHEN | WHERE Friday and Saturday nights at 8, Sunday at 2:30 p.m. at BayWay Arts Center, 265 E. Main St., East Islip; Aug. 6-31, BroadHollow Theatre at Elmont, 700 Hempstead Tpke., and 8:30 p.m. Aug. 7, Chapin Rainbow Stage, Heckscher Park, Huntington

INFO $14-$25 at East Islip $14-$28 at Elmont, free in Huntington; broadhol low.org, 631-581-2700

WHAT The Christian boy-band musical "Altar Boyz" winds up its rock-out run with an age-appropriate cast of Cultural Arts Playhouse theater students.

WHEN | WHERE Friday and Saturday at 8 p.m., Sunday at 7, Cultural Arts Playhouse, 625 Old Country Rd., Plainview

INFO $20; web.me.com/capcenter, 516-694-3330