What better way for a band to celebrate its 40th anniversary than with a seductive ballad about the continuing power of love? The veteran group now crosses two generations, with three new members joining the four founding Garcia brothers. The new blood adds energy to their trademark sound, with its accordions, acoustic guitars, and polka rhythms. They can pull out sweet harmonies on the love song "Cero a la Izquierda" or pound home the accordion stomp on "Cómo Le Hago."