by Stephen Thomas Erlewine 　　 　　 　　 　　In April of 2012, ACLs Moody Theater in Austin, Texas, held an all-star bash to celebrate what would have been Johnny Cashs 80th Birthday and that concert is captured on Legacys CD/DVD set We Walk the Line: A Celebration of the Music of Johnny Cash. The DVD has a slightly different sequencing than the CD but the essentials remain the same: this is a spirited salute to the great man. Where the slow spots arrive is all a matter of taste: it could be the slightly slick balladeering of Pat Monahan on "Help Me Make It Through the Night," Iron & Wines overly sleepy "The Long Black Veil," Ronnie Dunns by-the-numbers "Ring of Fire," or Lucinda Williams growl through "Hurt," none of which are bad but they may not appeal to those who prefer the wild, woolly train-track rhythms of Kris Kristoffersons "Big River," Rhett Millers "Wreck of the Old 97," Carolina Chocolate Drops stampeding "Jackson," or Buddy Millers "Hey Porter," all faithful but loose evocations of Cashs prime. Along the way there are some surprises, too: Evanescences Amy Lee delivers an expertly mournful "Im So Lonesome I Could Cry" and Brandi Carlile tears through "Folsom Prison Blues" with an earthy ferocity shes long kept hidden. Ultimately, this show was not about surprises or reinventions; it was a full-throated celebration of Cashs music, both his songs and his sounds, both of which are given the loving but not overly respectful treatment they deserve. Its not major -- its nothing but a good time, but thats enough.