London singer Florence Welch with her Machine blends styles and genres at Susquehanna

Highlights of the 13-song set underscored her refinement as a sommelier of styles and genres, pairing the huge, operatic arcs of melody in the Lungs hit "Cosmic Love" with the contemporary electro hooks of "Spectrum," Welch doing her best impression of Ellie Goulding or Elly Jackson. The classicist "Lover to Lover" found room for both a chorus nod to "I Heard It Through the Grapevine" and a keyboard riff reminiscent of AC/DC's "For Those About to Rock," while "Leave My Body" channeled Portishead-brand despair by way of redemptive Pentecostal gospel.

Though the size and scope of her music would befit an ensemble twice as large, the nine-piece band - including two drummers, a vocal trio, and a full-time harpist - ably buttressed Welch's commanding contralto.

The musical mastery on display was matched only by the effortless spell Welch cast on her audience. Though she spent much of her set galloping, pogoing, prancing, and pirouetting about the stage - sounding mystifyingly full-voiced as she made a highly competitive bid for the fastest singing sprint around the venue in Susquehanna history - even the humblest gestures between songs elicited mass adulation.

Welch could have left it at that, but went above and beyond in orchestrating all kinds of participation with and among the crowd throughout the night. The encore of "What the Water Gave Me," for one, confirmed that Welch has found a remarkable way to channel her inward anxieties and dark obsessions into something genuinely uplifting and relatable.

It's doubtful anyone else could have gotten an entire stadium to clap along quite so joyously to a minor-key elegy for Virginia Woolf.