For the past several years, electronic music has experienced an exciting evolution, with traditional record spinning, splicing, sampling and turntablism augmented or replaced by instrument-playing musicians. Among the U.K.-based bands riding the electro rock wave is Ladytron, a Liverpool foursome that adds an industrial edge and hints of New Wave pop to its driving dance music. Formed in 1999, the band is fronted by dark-haired European beauties Helen Marnie and Mira Aroyo, who provide very disparate vocal stylings; Marnie's tone is sweeter and usually at the forefront, while Aroyo's is dark and deep, her lyrics usually delivered in her native Bulgarian tongue. The band's stage show combines live instrumentation with electronics produced from antique synths and vintage analog equipment, the same equipment used on their albums. Ladytron is currently on a U.S. tour in support of its May Nettwork Records release, Velocifero; they are joined by labelmates Datarock, a Norway duo and purveyors of a kitschy brand of electro-pop à la Gil Mantera's Party Dream. Tues., June 10, Czar, 1420 E. Seventh Ave., Ybor City, $15 in advance/$18 day of show, 813-247-2664.