The interplay between light and dark is so epic on Sleepless that if the album were a painting, it would depict nothing less than a clash between angels and demons. On “The Choirs of Absolution” and “Lights, Adept’s uniquely expressive metalcore reaches fever pitch as heavenly choruses and gleaming pianos battle against death metal growls and cruel breakdowns. Robert Ljung is a titan. In addition to handling clean and harsh sung vocals, he employs spoken word as a way to heighten the emotional impact of several cuts, including the tempestuous “Black Veins.