"Aerial succeeds because it's all there for a reason. And because the good stuff is just so sublime. 'King of the Mountain', Bush's Elvis-inspired single, is both a fine opener and a total red herring. Bush's juices really get going on 'Pi', a sentimental ode to a mathematician, audacious in both subject matter and treatment. The chorus is the number sung to many, many decimal places. It's closely followed by a gushing ode to Bush's son, Bertie, that's stark and medieval-sounding. The rest of disc one (aka A Sea of Honey) sets a very high bar for disc two, with the Joan of Arc-themed 'Joanni' and the downright poppy 'How to Be Invisible' raising the hair on your arms into a Mexican wave. Disc two, subtitled A Sky of Honey, is a suite of nine tracks which, among other things, charts the passage of light from afternoon ('Prologue') to evening ('An Architect's Dream', 'The Painter's Link') and through the night until dawn. Things get a little hairier here."