Three years ago, I noted that one of the most exciting moments of Rodrigo y Gabriela’s concert was when the Mexican guitar slayers left their accompanying musicians in the background, and took center stage to melt faces and rock bodies with their breakneck-pace blend of Latin-meets-thrash nuevo flamenco. I was excited to see the extra depth and complexity that C.U.B.A. added to their pieces, but ultimately I had missed the mesmerizing speed and magnificent chemistry that was so utterly more palpable when the two were playing solely off of each other. With their most recent tour, in support of their fourth album 9 Dead Alive, Rodrigo y Gabriela have returned to their solo takeover of the stage, and brought with them an astonishing level of energy and joyous camaraderie that is remarkable to behold.