It’s much easier, nearly four decades later, to separate the music from the moment when it comes to Wings Over America. Back then, this multi-disc concert souvenir from Paul McCartney seemed like a triumphant musical summation.

Though King Crimson has been inactive since 2009, bassist Tony Levin says their music remains a topic of conversation among fans who fondly remember the group — even if describing their experiences sometimes proves difficult.

Upon a rolling wave of buzzing beats and percussion pitched halfway between the Burundi borrowings of Bow Wow Wow and Gene Krupa’s “Sing Sing Sing,” comes indie-pop nymph Lykke Li with “Get Some.”

Ian Gillan, fresh off a triumphal return in Now What?! with Deep Purple, looks back at his lengthy career — beginning with his very first appearance with the band.

At Live Oaks Bar and Ballroom, Monroe, La.: I’ve seen Tom Keifer a few times over the years with Cinderella, mostly in arenas and ampitheaters, and always left happy.

Greg Lake takes fans inside one of Emerson Lake and Palmer’s most spectacular 1970s-era concert stunts — when Keith Emerson would rise above the crowd playing a grand piano and turn 360 degrees.

Arriving in a period in which Yes wasn’t doing studio work, and including contributions from no less than five musicians with ties to the band, the comparisons for Circa came early and often. A new reissue from Cleopatra underscores the differences.

The turn of the millennium was a time of artistic resurgence for UK guitar lord Allan Holdsworth; with its stripped down arrangements and group improvisational freedom, Holdsworth got more from less out of Sixteen Men of Tain (2000).

Flash, together again after four decades, take on a song that’s already been defined (as a Nine Inch Nails original) and then redefined (with Johnny Cash’s harrowing third-act re-do) — and yet they still find new revelations.

For John Clayton, the gig was a complete mystery. He knew that Diana Krall would be on piano, but not who the singer would be. “They wouldn’t say who it was,” the Grammy-winning jazz bassist reveals. Because it was Paul McCartney.