Country singer Johnny Cash died in September 2003

Emmylou Harris and Sheryl Crow are among the singers brought together by 33-year-old John Carter Cash.

The album, The Unbroken Circle - the Musical Heritage of the Carter Family, celebrates music by the Carter trio - Johnny Cash's family by marriage.

The country singer's mother-in-law Maybelle Carter belonged to the family trio before it disbanded in 1941.

Family estate

Cash appears on the 15-track album singing Engine One-Forty-Three, while his wife June Carter Cash performs Hold Fast to the Right.

Both died within months of each other in 2003, leaving their son to deal with the family estate.

More than 650 items, including handwritten lyrics, photos, vintage clothing and musical instruments, will be auctioned at Sotheby's in New York in September.

The artists on the album, produced at the Cash Studio Cabin, give current renditions of Carter trio classics.

Sheryl Crow (left) and Emmylou Harris attended Cash's funeral

Emmylou Harris and the Peasall Sisters contribute On the sea of Galilee, alongside George Jones with Worried Man Blues.

Singer Sheryl Crow performs No Depression in Heaven, while Rosanne Cash sings The Winding Stream and others.

John Carter Cash developed his recording skills working with his father in the studio cabin.

He was keen to allow the album's artists to bring their own interpretations to the tribute tracks, first performed by his grandmother Maybelle with Alvin Pleasant (AP) Carter and Sara Carter.

"My parents taught me some great lessons," he said.

"I also learned that you have to continue to develop and move forward even though it isn't always easy."