Some bands sputter and wither after major personnel changes, and then there’s Marillion. The British neo-progressive collective’s first incarnation crested with 1985’s concept-driven Misplaced Childhood, which featured original mercurial lead singer Fish and the hit guitar-driven lament, “Kayleigh.” Act II commenced with 1989’s transitional Seasons End, featuring new vocalist Steve Hogarth (a.k.a. “h”), who has since helped fuel the band to greater compositional heights over the last two decades.