Like its name, Au is a stripped-down band. The group has only two permanent members, Dana Valatka on percussion and Luke Wyland on a melange of instruments. If it weren't for the rotating cast of Portland, Ore., peers the duo enlists to flesh out its tracks, one might think Au's creations would fall flat. But that is dead wrong.
The tracks featuring only Wyland and Valatka are just as rubbery and colorful as anything including the work of cohorts like Colin Stetson (Bon Iver, Arcade Fire), who provides sax and bass on Au's most-recent release, Both Lights. The album is a shimmery, soft heap of sonics, experimental and antique all at once. The qualities that best describe Au also describe the element on the Periodic Table after which it's named, gold: malleable, shiny and lustrous.
Au will take the Treefort Music Fest Main Stage today, Saturday, March 24, from 5:50-6:30 p.m.