The release, called An American Treasure, marks the first posthumous album of Petty material since his death in October. The SiriusXM broadcast debuted a clip from one of the unreleased songs from 1982, a bouncy, organ-heavy cut “Keep a Little Soul.” 
 
 An American Treasure will contain previously unreleased studio recordings, live recordings, deep cuts and alternate versions of popular Petty songs, according to SiriusXM. The first single from the set is “Keep A Little Soul,” a previously unreleased recording from 1982 sessions that resulted in Tom Petty & The Heartbreakers’ album, “Long After Dark.” 
 
 According to the announcement on a redesigned Petty website, Tom’s daughter, Adria, and his wife, Dana, were the primary catalysts for the commission, creation and release of “An American Treasure.” Both serve as the project’s Executive Producers, and, together with Tom’s bandmates of 45 years, Heartbreakers Mike Campbell and Benmont Tench, and his studio collaborator, Ryan Ulyate, curated the box set’s track list 
 
 “Everyone involved in this project chose each track with tremendous care and deep respect for the body of work Tom Petty created over the course of 40 years,” Adria and Dana said. “It is our feeling that the pain was simply unbearable and was the cause for his overuse of medication.” 
 
 An American Treasure Track List: 
 
 Disc One 
 
 “Surrender” – Previously unreleased track from Tom Petty and the Heartbreakers sessions, 1976 “Listen to Her Heart” – Live at Capitol Studios, Hollywood, CA, November 11, 1977 “Anything That’s Rock ‘N’ Roll” – Live at Capitol Studios, Hollywood, CA, November 11, 1977 “When the Time Comes” – Album track from You’re Gonna Get It!, May 2, 1978 “You’re Gonna Get It” – Alternate version featuring strings from You’re Gonna Get It! sessions—1978 
 
 6 Radio Promotion Spot 1977 
 
 7 Rockin’ Around (With You) Album track from Tom Petty and the Heartbreakers —November 9, 1976 
 
 8 Fooled Again (I Don’t Like It) Alternate version from Tom Petty and the Heartbreakers—1976 
 
 9 Breakdown Live at Capitol Studios, Hollywood, CA—November 11, 1977 
 
 10 The Wild One, Forever Album track from Tom Petty and the Heartbreakers—November 9, 1976 
 
 11 No Second Thoughts Album track from You’re Gonna Get It!—May 2, 1978 
 
 12 Here Comes My Girl Alternate version from Damn The Torpedoes sessions—1979 
 
 13 What Are You Doing In My Life Alternate version from Damn The Torpedoes sessions—1979 
 
 14 Louisiana Rain Alternate version from Damn The Torpedoes sessions—1979 
 
 15 Lost In Your Eyes Previously unreleased single from Mudcrutch sessions—1974 
 
 CD 2 
 
 1 Keep A Little Soul Previously unreleased track from Long After Dark sessions—1982 
 
 2 Even The Losers Live at Rochester Community War Memorial, Rochester, NY—1989 
 
 3 Keeping Me Alive Previously unreleased track from Long After Dark sessions—1982 
 
 4 Don’t Treat Me Like A Stranger B-side to UK single of “I Won’t Back Down”—April, 1989 
 
 5 The Apartment Song Demo recording (with Stevie Nicks)—1984 
 
 6 Concert Intro Live introduction by Kareem Abdul-Jabbar, The Forum, Inglewood, CA—June 28, 1981 
 
 7 King’s Road Live at The Forum, Inglewood, CA—June 28, 1981 
 
 8 Clear The Aisles Live concert announcement by Tom Petty, The Forum, Inglewood, CA—June 28, 1981 
 
 9 A Woman In Love (It’s Not Me) Live at The Forum, Inglewood, CA—June 28, 1981 
 
 10 Straight Into Darkness Alternate version from The Record Plant, Hollywood, CA—May 5, 1982 
 
 11 You Can Still Change Your Mind Album track from Hard Promises—May 5, 1981 
 
 12 Rebels Alternate version from Southern Accents sessions—1985 
 
 13 Deliver Me Alternate version from Long After Dark sessions—1982 
 
 14 Alright For Now Album track from Full Moon Fever—April 24, 1989 
 
 15 The Damage You’ve Done Alternate version from Let Me Up (I’ve Had Enough) sessions—1987 
 
 16 The Best Of Everything Alternate version from Southern Accents sessions—March 26, 1985 
 
 17 Walkin’ From The Fire Previously unreleased track from Southern Accents sessions—March 1, 1984 
 
 18 King Of The Hill Early take (with Roger McGuinn)—November 23, 1987 
 
 CD 3 
 
 1 I Won’t Back Down Live at The Fillmore, San Francisco, CA—February 4, 1997 
 
 2 Gainesville Previously unreleased track from Echo sessions—February 12, 1998 
 
 3 You And I Will Meet Again Album track from Into The Great Wide Open—July 2, 1991 
 
 4 Into The Great Wide Open Live at Oakland-Alameda County Coliseum Arena—November 24, 1991 
 
 5 Two Gunslingers Live at The Beacon Theatre, New York, NY—May 25, 2013 
 
 6 Lonesome Dave Previously unreleased track from Wildflowers sessions—July 23, 1993 
 
 7 To Find A Friend Album track from Wildflowers—November 1, 1994 
 
 8 Crawling Back To You Album track from Wildflowers—November 1, 1994 
 
 9 Wake Up Time Previously unreleased track from early Wildflowers sessions—August 12, 1992 
 
 10 Grew Up Fast Album track from Songs and Music from “She’s the One”—August 6, 1996 
 
 11 I Don’t Belong Previously unreleased track from Echo sessions—December 3, 1998 
 
 12 Accused Of Love Album track from Echo—April 13, 1999 
 
 13 Lonesome Sundown Album track from Echo—April 13, 1999 
 
 14 Don’t Fade On Me Previously unreleased track from Wildflowers—sessions—April 20, 1994 
 
 CD 4 
 
 1 You And Me Clubhouse version—November 9, 2007 
 
 2 Have Love Will Travel Album track from The Last DJ—October 8, 2002 
 
 3 Money Becomes King Album track from The Last DJ—October 8, 2002 
 
 4 Bus To Tampa Bay Previously unreleased track from Hypnotic Eye sessions—August 11, 2011 
 
 5 Saving Grace Live at Malibu Performing Arts Center, Malibu, CA—June 16, 2006 
 
 6 Down South Album track from Highway Companion—July 25, 2006 
 
 7 Southern Accents Live at Stephen C. O’Connell Center, Gainesville, FL—September 21, 2006 
 
 8 Insider Live (with Stevie Nicks) at O’Connell Center, Gainesville, FL—September 21, 2006 
 
 9 Two Men Talking Previously unreleased track from Hypnotic Eye sessions—November 16, 2012 
 
 10 Fault Lines Album track from Hypnotic Eye—July 29, 2014 
 
 11 Sins Of My Youth Early take from Hypnotic Eye sessions—November 12, 2012 
 
 12 Good Enough Alternate version from Mojo sessions—2012 
 
 13 Something Good Coming Album track from Mojo—July 15, 2010 
 
 14 Save Your Water Album track from Mudcrutch 2—May 20, 2016 
 
 15 Like A Diamond Alternate version from The Last DJ sessions—2002 
 
 16 Hungry No More Live at House of Blues, Boston, MA—June 15, 2016
– Tom Petty's death did not mark the end of new music from the rock legend. A previously unreleased track from 1982 has been made public ahead of a box set to be released by Reprise Records. Per Variety, the song, called “Keep A Little Soul,” will be among dozens of new, rare, and live recordings that will be included in the four-CD set dubbed An American Treasure. According to Rolling Stone, Petty’s daughter, wife, and former Heartbreakers band members Benmont Tench and Mike Campbell are among those who helped choose the tracks to include from the rocker's formidable body of work. The box set is due out September 28. Petty died last October of an accidental drug overdose. (Later this month, some of the singer's signature clothes and one very special guitar will go up for auction.)