If one great bluegrass band is a good thing, then two great bluegrass bands should be totes awesome, right?

Right!

Look, I don’t need to tell you a ton about the two bands playing at The Belfry in Sisters tonight. They’ve both played Central Oregon so many times they’re practically locals. Which means if you go out to hear live music, you probably already know what Head for the Hills and Polecat do.

The former is a Colorado quartet with a new album out called “Blue Ruin” that pushes the band’s string-band sound into progressive, poly-genre-fied places. Jazz, rock, international music, maybe a little acoustic funk; this is why Head for the Hills has been an increasingly popular force on the Western newgrass scene over the past several years.

The latter — Polecat, remember? — lives in the same neighborhood as Head for the Hills, though this band is a quintet from Bellingham, Wash., that tends to feel more like an electrified hoedown than a front-porch pickin’ sesh. This is, at least in part, because Polecat has a drummer, which drops them into generally deeper grooves than their drum-less co-headliners at tonight’s show.

Anyway, the point is, both bands are a good time and a perfect soundtrack for a night of dancing inside a 100-year-old church in a small, Western town that loves roots music. Fun, fun, fun.

Head for the Hills, with Polecat; 8 tonight; $13 plus fees in advance at www.bendticket.com, $15 at the door; The Belfry, 302 E. Main Ave., Sisters; www.belfryevents.com or 541-815-9122.

— Ben Salmon