Loretta Lynn's musical roots are explored on a new “American Masters” documentary on PBS as well as her first new studio album in a more than a decade, “Full Circle.”

NASHVILLE, Tenn. — When Loretta Lynn was growing up in Butcher Hollow in Kentucky in 1930s, her home in the coal mining community was always filled with music, either from her own voice echoing through the trees or the sound of the Carter Family’s songs.

The country icon’s Appalachian musical roots are explored on a new “American Masters” documentary on PBS as well as her first new studio album in a more than a decade, “Full Circle,” which both debuted Friday.

Lynn, who was the second of eight children in her family, said her daddy played the banjo and her mama played the guitar and nearly everyone in the “holler” could sing or play.

“I was singing when I was born, I think,” said the 83-year-old singer during an interview in Nashville, where she was taping a new music video with Willie Nelson. “Daddy used to come out on the porch where I would be singing and rocking the babies to sleep. He’d say, ‘Loretta, shut that big mouth. People all over this holler can hear you.’ And I said, ‘Daddy, what difference does it make? They are all my cousins.”’

The documentary, “Loretta Lynn: Still a Mountain Girl,” chronicles Lynn’s remarkable rise from a “Coal Miner’s Daughter” to a country superstar who wrote frank songs about her upbringing and her experiences as a wife and mother.

Although her rags-to-riches story is already well known thanks to a best-selling autobiography and Oscar-winning film starring Sissy Spacek, Lynn has never before recorded many of the Appalachian songs that inspired her career. Her last album, “Van Lear Rose,” produced by rocker Jack White, earned her two Grammys in 2005.

“Some of them were songs I sang when I was just a little girl,” Lynn said. “I didn’t dream any of them would get on this album.”

It was fitting then that producer John Carter Cash, the son of June Carter and Johnny Cash, helped her revisit some of these songs, including a couple of Carter Family standards, “Black Jack David” and “I Never Will Marry.” The Carters were a musical dynasty from just over the Appalachian Mountains in Virginia — lead by A.P. Carter, his wife, Sara, and his sister-in-law Maybelle — who wrote legendary songs like “Keep on the Sunny Side,” “Wildwood Flower” and “Will the Circle Be Unbroken.”