It’s been a busy year for U.K. synth-rockers Ladytron. The 12-year-old outfit — fronted by singers Mira Arroyo and Helen Marnie and backed by keyboardists Daniel Hunt and Reuben Wu — issued “Best of Ladytron: 00-10” anthology (in a regular and two-disc deluxe edition) and followed with a textural fifth album, “Gravity the Seducer.” Wu phoned from his native Liverpool for a quick Ladytron update. Read More