The final performance of Judas Priest’s “Epitaph World Tour” in May 2012 provided the perfect opportunity to offer a live video celebration of 40 years of metal.

Too often, Queen has become the sum of its over-stated parts — the operatic singer, the layered vocals, the anthematic balladry. What’s lost is the group’s ability to unleash round house after round house of knuckle-sandwich heavy rock.

With the sad anniversary of Ronnie James Dio’s death some three years ago comes an opportunity to return to a muscular concert offering that finds him near the peak of his solo powers.

Looking back, it seemed preordained. Stevie Nicks met Dave Stewart years ago, and had a good feeling about him. “Maybe,” Stevie Nicks says toward the end of the film In Your Dreams, “this played out for a reason.”

If you have any doubt who the greatest singer in the history of metal, heck, maybe in the history of rock ‘n’ roll is, just pop this DVD into your player and fast forward to the second song.

In 1995, she was trudging herself across a desert and screaming out an angst-ridden tune that was possibly about the dude from “Full House.” My teenaged-self went into overdrive at this Alanis Morissette

Maybe no song in this forthcoming live set so perfectly illustrates the contentment and joy that the now-married new mother Alanis Morissette seems to enjoy now as does “Thank U,” her set closer at Montreux last year.

Pat Metheny is such an accomplished figure that it’s easy to overlook his cohorts in the Metheny Group — making this new live document an endlessly instructive journey.

Don’t let the goofball demeanor fool you: Ringo Starr is the model of consistency these days, as solid and professional a frontman as there is — and maestro of one of the last decades’ most reliably entertaining guest-packed tours.

You may be asking yourself: Another live Peter Frampton? Already? I know I was. But there is at least one good reason for this one, beyond the snazzy 5.1 Surround Sound, and yet another interaction of all of the hits. His name is Bob Mayo.