Known for firing up with wicked-fast flamenco riffage and frenetic percussive strums, Mexican guitar wizards Rodrigo y Gabriela also inject bolero sensibilities and other rootsy forms into the centuries-old Andalusian style. The silken fingerpicking on “Hora Zero” flows over upbeat rumba rhythms, and they revitalize jazz's widely covered “Take Five,” sending nimble, skittering riffs up to the ether.