Their name sounds like a 1920s jug band, but Delta 5 — Leeds contemporaries of the Gang of Four — display up-to-the-minute beat consciousness welded to songs of emotional discontent. Double female vocals in pronounced British accents are backed by whomping rhythm (two guitars, two basses) and occasional splashes of musical color (brass, keyboards, pedal steel guitar). Semi-cryptic lyrics, full of striking images, are worth the strain needed to pull them out of the seething mass. Jagged music for jagged times.