Grizzly Bear

Like Radiohead and TV on the Radio (but unlike Animal Collective and many others), Grizzly Bear is one experimental indie band that can tear down conventional song structures and stir them up with plush layers of harmonies and frayed guitars, then somehow build it all back up into something sensible and powerful on stage. The Brooklyn quartet will have its work cut out this time around. The new album, “Shields” — recorded between the mystical pull of Marfa, Texas, and the hoity-toity confines of Cape Cod — is ambitious and aurally challenging, but reviews and clips from the tour sound promising. Atmospheric Baltimore band Lower Dens opens. Chris Riemenschneider