If songwriter/guitarists Ed Droste and Daniel Rossen aren’t sure how to classify themselves, don’t expect me to do it. Their Brooklyn quartet Grizzly Bear—rounded out by Chris Taylor and Christopher Bear—has been lumped into both lo-fi indie rock and the over-zealously tagged acid-folk categories, but it’s a little tough to really peg the band’s distinctive, widescreen sound. Started originally as a bedsit songwriting project by Droste, Grizzly Bear’s central power lies in the careful song construction bearing unfolding honesty and lilting melodies. This power is furthered by concise arrangements—often spare but sounding larger than life—and a knack for experimentation, adding electronic elements and a pastiche of found sounds and percussion. With online tastemaker Pitchfork.com already cheerleading, Grizzly Bear’s second album proper, Yellow House (Warp Records), which followed the 2004 debut Horn of Plenty (Kanine), has catapulted them catastrophically close to mainstream success with wide coverage and kudos including a top five placement on the New York Times list of the best albums of last year. As they begin work on the follow up to Yellow House, the band finally comes to Buffalo following a busy summer that included big festival stops at Seattle’s Sasquatch and Pitchfork’s sold-out fest in Chicago.

Wednesday, September 19 at 8pm. Tralf Music Hall, 662 Main Street. (852-2860/tralfmusichall.com). $13/advance (Ticketmaster) or $15/day of show