Styx’s seventh album is a very prog affair. It has fanfares of saturated synths, warm bursts of acoustic guitar (particularly in “Fooling Yourself [The Angry Young Man]”), and songs that straddle the gulf between medieval hymns and heavy metal (“Castle Walls”). There’s furious riffing and cascading keyboard solos in “Miss America” and a weary tenderness to “Man in the Wilderness.” And the hit “Come Sail Away” ends with choral optimism and rowdy guitars but starts like the sweetest Disney confection.