Liverpool’s Dirty Blue goes thumping and hypnotic 3AM-style here, as producers Andy Winrow and Simon McCormick take you into endless track-land. The title cut hoovers a reggae chord and dread vocal samples in space while the thump below runs easy and wild á la Swayzak. The flip’s “Stranded” goes all opaque and urban-aboriginal percussive. The next school is in session.