Since this band's name translates to "Bacteria," listeners would perhaps expect an aggressive and harsh sound, but the Latin pop trio offers just the opposite -- a perfectly blended fusion of diverse Latin American melodies. Sin Verguenza is the Miami-based group's third CD, and it demonstrates a sophisticated mélange of the members' Brazilian, Colombian, and Puerto Rican musical traditions. Some of the tracks, such as "Sangre Americana," reveal more of a pop/rock focus with just a sprinkling of Latin rhythms, while others such as "Pasos de Gigante" present straight-ahead Latin music complete with horns and timbales. Lead singer/guitarist