Already on their first CD, Buenos Aires-based four-piece Montenegro have hit on an interesting sonic blend. Taking elements from desert rock, surf, spaghetti west and South American folk, the heavy rockers start out with a leg up on Confusos Recuerdos Después del Coma (Sick-o-Delic Records), comprised of four relatively extended tracks totaling about 35 minutes. The shortest of them, the mostly-instrumental "Soluciones," might be the most interesting of the bunch, with guitarist Gonzalo Rubio García inserting driving leads between alternately funky and driving riffs, choppy-waters surf and finally rolling grooves topped by vocalist Agustin Girolami, but even on the opening "Ideario," Montenegro distinguish themselves within the range of post-Los Natas Argentinian heavy. It will be interesting to see how Montenegro endeavor to work in some of the variety of influence they show on "Soluciones" in with the desert rock and heavy psych aspects of their sound going forward -- if indeed they decide that's to be their project -- but already on Confusos Recuerdos Después del Coma they have a strong sense of aesthetic that's met with warm tones and engaging grooves.