Kate Bush’s ‘50 Words for Snow’

Fitting for a work called “50 Words for Snow,’’ Kate Bush’s 10th album moves with the velocity and grace of a glacier. Built around piano, Bush’s supple voice, and the faintest wash of drums, bass, and guitar, its seven songs sprawl over 65 minutes; it’s the kind of album Florence and the Machine could make with Antony and the Johnsons.