At last, there’s a Brazilian choro band in Maine! This up-tempo instrumental music, rooted in the swingin’ days of 19th century Rio, comes alive in the hands of Choro Loco, a local supergroup comprised of flautist Nicole Rabata, flautist/guitarist Carl Dimow, uke master Joel Eckhaus and bassist Kris Day. They’re at Blue (650 Congress St., Portland) at 10 p.m. Free (all ages; donations encouraged). 774-4111. portcityblue.com.