Songwriter Ryan Hurd can slip into almost any mode and still maintain his musical identity. He's crafted chart-bound tunes like Diplo's pop/R&B plaint "Heartless," Lady Antebellum's gliding power ballad "What If I Never Get Over You," and the Brothers Osborne's raw, twangy "Greener Pastures," and each one bears his sonic fingerprints: an indelibly hooky melody and straight-from-the-heart lyrics.