Matuto, photographed by Vincent SoyezDepending on the source, the English-language equivalent of the Brazilian slang term "matuto" appears to be "country boy" or "bumpkin" or "hillbilly." What it absolutely isn't is "critically lauded ensemble selected as American Musical Ambassadors for the U.S. State Department."

Yet that is indeed a fitting description for the capitalized Matuto, the sextet of touring musicians appearing locally as Quad City Arts' latest Visiting Artists. After a week spent conducting workshops and performing for area students, these dynamic, adventurous artists and educators will present a September 21 concert at St. Ambrose University's Galvin Fine Arts Center, where they hope to excite many more listeners with the infectious thrill of Brazilian bluegrass.

That's right: Brazilian bluegrass. Don't feel embarrassed if you've never heard of it.