Imagine the sound of a Brazilian Carnaval in the Appalachian Mountains. The five members of Matuto and their lively, unorthodox music move with two-stepping grace between bluegrass and forro, between swamp rock and maracatu, between surf guitar shimmies and the wah-wah of the berimbau.

On Thursday, July 19, the Matuto arrives in Boothbay Harbor to perform at the Opera House.

In 2002, band leader Clay Ross embarked on a musical odyssey that brought him closer to home. The South Carolina native moved to New York to pursue a jazz career and several years later found himself in Recife, Brazil, studying the region’s folkloric music. Along the way he rediscovered the straightforward songs of his native South.

The guitarist and singer titled his debut album “Matuto,” after a Brazilian slang reference to a man from the backcountry. Described as “Weird and Wonderful… Unorthodox and Delightful” by Jazz Times Magazine, the set allows Ross to carve a niche in a musical tradition created on another continent. He performs North American folk songs like “Home Sweet Home” and Blind Willie Johnson’s “John the Revelator” over South American rhythms Maracatu, Forró and Coco typical of the northeastern region of Brazil.

In recording the album, Ross called upon the talents of New York City’s most sought-after musicians, including master accordionist Rob Curto. Born in New York, Curto is widely regarded as forró’s foremost ambassador in the U.S.

An early devotee of North American swing music, bebop piano, funk, rock and blues, he has combined these influences with his mastery of their Brazilian counterparts forró, chorinho, samba, maracatu and frevo to produce stunning new results. He spent years living and playing in Brazil, completely absorbing and interpreting the country’s musical traditions. Curto was a member of the original scene that established forró, the dance music of northeastern Brazil, as an official dance craze in downtown New York.

Ross and Curto began exploring a shared musical vision and set about combining their individual repertoires into an extensive library of Pan-American influences. Focusing their talents, resources, and experience Ross and Curto set out to establish Matuto as a band.

In February of 2009 they received a prestigious Fulbright Grant and completed a six-week residency in Recife, Brazil. There, with drummer Richie Barshay of the Herbie Hancock Quartet and bassist Edward Perez, the band thrilled audiences at the Garanhuns Jazz Festival and the massive Rec Beat Festival, finding equal comfort alongside jazz and blues legends, folk music traditionalists, and indie rock experimentalists. Later that year they headlined the American Folk Festival in Bangor and the Montmagny World Accordion Festival in Canada.

Employing renowned musicians across New York City’s diverse jazz, roots and world music scenes, Matuto features violin, guitar, accordion, bass, drums and various Brazilian percussion instruments: the alfaia (a large, wooden, rope-tuned bass drum), the pandeiro (a Brazilian tambourine), the berimbau (a single-string on a bow struck with a small stick) and the agogô (a pair of small, pitched metal bells).

Tickets for the concert, suitable for all ages, are $15 in advance and $20 on the day of the show and they are available through the Opera House box office at 86 Townsend Ave. in Boothbay Harbor or by calling 633-5159. Tickets are also available at www.boothbayoperahouse.com.

Doors for seating open at 7 p.m., the music starts at 7:30 p.m.