When your breakthrough record is a post-sobriety look back, where do you go next? There's certainly no shortage of recorded music that covers the "before." Sometimes there's a clear line-in-the-sand in an artist's catalog; other times, there's no obvious intervention, no discernible divide. Nashville singer-songwriter Ruston Kelly's answer, Shape & Destroy, is more refinement than reinvention; a statement of purpose, it offers a path forward in which the process of recovery continues with resolve.