If it’s rock, you gotta play it LOUD!

It’s been barely two hours since we recorded this week’s edition of “Movies 101,” and I’m now enjoying the post-recording glow.

Not that the show is any great shakes, but one of the movies that we review is “It Might Get Loud,” which throws us into the music of Jimmy Page (of Led Zeppelin), Jack White (of the White Stripes) and The Edge (of my second-favorite rock group of all time, Dublin’s U2).

And so, after arguing with Bob Glatzer over the worth of “It Might Get Loud” – given his Public Radio sensibilities, he would have preferred to listen to three classical musicians ramble on about their creative impulses – I had to rush to Hastings and then Best Buy to buy a DVD copy of “U2: Live at Red Rocks.”

That is what is blaring on my TV, with the volume pushed to 11, as I type this. It’s a film made of U2’s June 5, 1983, concert at Colorado’s Red Rocks Amphitheatre. And though the band has changed much over the past 26 – can’t believe it’s been 26! – years, all the elements of what they would become are there.

Not just Bono’s wailing vocals and rock-star charisma, Adam Clayton’s driving bass, Larry Mullen Jr.’s pounding drums but The Edge’s reverb-heavy guitar lines. It’s the secret behind those guitar lines that The Edge reveals in “It Might Get Loud,” how obsessed he is, he admits, about playing aloud the music that he hears in his head.

That kind of obsession is what The Edge has in common with Page, the one-time studio musician, who even at age 65 , maintains his love of the craft he plied so well for so many years. It’s there in White, too, the obstreperous one of the trio whose tendency for affectation can’t quite mask his obvious talents and love of music that is as basic as it is life-affirming.

“It Might Get Loud” suffers from two things. While it is a decent exploration of the artist at work, it doesn’t reward us with enough music. And it isn’t nearly loud enough.

As I sit here, I’m curing both of those faults. Hope the neighbors don’t mind.

On second thought, to hell with them. Rock on, U2!