What once sounded like Lynyrd Skynyrd-to-the-moon — and that is a high compliment — is now even bigger in heave and bolder in color and texture. At the Austin Music Hall,”Run Thru” was a Kentucky “Kashmir” and “Whole Lotta Love” combined: a slow, heavy riff; a hellbent middle of unison-guitar excitement; and a hard u-turn back to that messy, majestic grind. You could keep biting your nails, waiting for a Zeppelin-reunion tour. Or you can see My Morning Jacket, here and now, make their own Physical Graffiti in your face.Another Update: Now you can download the concert in mp3. Here.