Song of the Mountains

Season 4 opens with the bluegrass group Lost and Found and duo Kenny and Amanda Smith.

The Hillbilly Gypsies, an Appalachian-bluegrass band; bluegrass group Randy Waller and the Country Gentlemen.

Singer-songwriter Beth Stevens and Edge, her backing band; Larry Cordle and Lonesome Standard Time, a bluegrass group.

Performers include the Pleasant Hill Band and Millers Creek.

Old-time music performers Bill and Maggie Anderson; singer-songwriter A.J. Roach; James Leva and Purgatory Mountain, an Appalachian mountain-music act.

Tom T. Hall performs.

Singer-songwriter Donna Ulisse; the Shadow Ridge Band, a bluegrass group.

NewFound Road, a bluegrass band; Audie Blaylock and Redline, a bluegrass group.

Mike Seeger and the Wilders perform.

Gold Heart; Cody Shuler and Pine Mountain Railroad.

Cherryholmes, a bluegrass band.

Naomi's Fancy, a traditional Irish folk-music group; Country Saloon, a bluegrass band.

The Snyder Family Band, a bluegrass-gospel group; series host Tim White and his band.

The Circuit Riders; Dale Ann Bradley.

Performers include Donna Hughes and the Larry Stephenson Band.

Big Country Bluegrass and the James King Band perform.

Zephyr Lightning Bolts and Tennessee Skyline perform.

The traditional Irish group Sigean; Mike Stevens and Raymond McLain, whose music combines the blues, bluegrass and old-time country music.

Bluegrass & Beyond; Don Rigsby and Midnight Call.

Special Consensus; Valerie Smith and Liberty Pike.

Lou Reid and Carolina perform.

The Moron Brothers and Nothin' Fancy perform.

Jesse McReynolds and the Virginia Boys perform.

The Celtic Appalachian band Fire in the Kitchen; the Dixie Bee-Liners, a bluegrass group; singer-songwriter Daniel Boner.