This Argentine group plays very intricate and original music. Along with the traditional rock set-up (guitar, bass, and drums), the band featured a violonist, flutist, saxophonist, and pianist. Their music is complex, energetic, and diabolical in a KING CRIMSON-ish sort of way. Influences are varied (classic, jazz, rock, folk) but make up quite an interesting blend.
Their new album came out in the end of 2018 and is called El Eco Del Sol.
Facebook: https://www.facebook.com/Bubu.Prog/