Pokračujúc v hudobnom skúmaní Joniných zvukov infikovaných jazzom, tento set bude obsahovať nevydané štúdiové relácie a alternatívne verzie hitov z prelomových albumov Hejira, Don Juan's Reckless Daughter, Mingus a Shadows and Light spolu so vzácnymi fotografiami z tejto éry. Balené v podobnom duchu ako predchádzajúce sady v sérii, Vol. 4 bude obsahovať aj poznámky od Joni v rozhovore s priateľom a dôverníkom Cameronom Croweom. Tento komplexný a zásadný súbor zahŕňa jedno z najplodnejších období jej slávnej kariéry. Môže sa pochváliť silnými živými skladbami z jej čias v Rolling Thunder Revue Boba Dylana počas Tour of the United States v rokoch 1975 a 1976. Sťahuje oponu hudby predstavením prvých nahrávok a alternatívnych záberov z príslušných relácií pre Hejiru, Don Juan's Reckless Daughter a Mingus. Týka sa to festivalu Bread & Roses, ako aj Antinukleárneho zhromaždenia. Nakoniec, sv. 4 zaznamenáva jej turné v roku 1979, dokonca predstavuje dve skladby z tohoročných skúšok na turné.
LP 1:
1. Joni Mitchell - Introduction - Bob Neuwirth (Rolling Thunder Revue, Live at Harvard Square Theater, Cambridge, MA, November 20, 1975)
2. Joni Mitchell - Edith and the Kingpin (Rolling Thunder Revue, Live at Harvard Square Theater, Cambridge, MA, November 20, 1975)
3. Joni Mitchell - Don't Interrupt the Sorrow (Rolling Thunder Revue, Live at Harvard Square Theater, Cambridge, MA, November 20, 1975)
4. Joni Mitchell - Introduction - Bob Neuwirth (Live at Music Hall, Boston, MA, November 21, 1975)
5. Joni Mitchell - Harry's House (Live at Music Hall, Boston, MA, November 21, 1975)
6. Joni Mitchell - A Case of You (Live in Bangor, ME, November 27, 1975)
7. Joni Mitchell - Intro to Coyote (Live at Montreal Forum, Montreal, QC, Canada, December 4, 1975)
8. Joni Mitchell - Coyote (Live at Montreal Forum, Montreal, QC, Canada, December 4, 1975)
9. Joni Mitchell - Free Man in Paris (Live at Music Hall, Boston, MA, February 19, 1976)
10. Joni Mitchell - Shades of Scarlett Conquering (Live at Music Hall, Boston, MA, February 19, 1976)
11. Joni Mitchell - For Free (Live at Nassau Coliseum, Uniondale, NY, February 20, 1976)
LP 2:
1. Joni Mitchell - Shadows and Light (Live at Music Hall, Boston, MA, February 19, 1976)
2. Joni Mitchell - In France They Kiss On Main Street (Live at Music Hall, Boston, MA, February 19, 1976)
3. Joni Mitchell - Intro to Furry Sings the Blues (Live at Music Hall, Boston, MA, February 19, 1976)
4. Joni Mitchell - Furry Sings the Blues (Live at Music Hall, Boston, MA, February 19, 1976)
5. Joni Mitchell - Traveling (Hejira) [Hejira Demo, A&M Studios, Hollywood, CA, March 1976]
6. Joni Mitchell - Black Crow (Hejira Demo, A&M Studios, Hollywood, CA, March 1976)
7. Joni Mitchell - Amelia (Hejira Demo, A&M Studios, Hollywood, CA, March 1976)
8. Joni Mitchell - Intro to Song for Sharon (Rolling Thunder Revue, Tarrant County Convention Center, Fort Worth, TX, May 16, 1976)
9. Joni Mitchell - Song for Sharon (Rolling Thunder Revue, Tarrant County Convention Center, Fort Worth, TX, May 16, 1976)
LP 3:
1. Joni Mitchell - Refuge of the Roads (Early Mix With Horns) [Hejira Sessions, A&M Studios, Hollywood, CA, Summer 1976]
2. Joni Mitchell - Don Juan's Reckless Daughter (Early Rough Mix) [Hejira Sessions, A&M Studios, Hollywood, CA, Summer 1976]
3. Joni Mitchell - Otis and Marlena (Early Rough Mix) [Don Juan's Reckless Daughter Sessions, A&M Studios, Hollywood, CA]
4. Joni Mitchell - Sweet Sucker Dance (Vocals & Drums Version - Take 5) [Mingus Sessions, Electric Lady Studios, New York]
5. Joni Mitchell - Introduction (Live at Bread & Roses Festival, Greek Theatre, Berkeley, CA, September 2 & 3, 1978)
6. Joni Mitchell - The Dry Cleaner from Des Moines (Live at Bread & Roses Festival, Greek Theatre, Berkeley, CA, September 2 & 3, 1978)
7. Joni Mitchell - Intro to Goodbye Pork Pie Hat (Live at Bread & Roses Festival, Greek Theatre, Berkeley, CA, September 2 & 3, 1978)
8. Joni Mitchell - Goodbye Pork Pie Hat (Live at Bread & Roses Festival, Greek Theatre, Berkeley, CA, September 2 & 3, 1978)
9. Joni Mitchell - Intro to the Wolf That Lives in Lindsey (Live at Bread & Roses Festival, Greek Theatre, Berkeley, CA, September 2 & 3, 1978)
10. Joni Mitchell - The Wolf That Lives in Lindsey (Live at Bread & Roses Festival, Greek Theatre, Berkeley, CA, September 2 & 3, 1978)
11. Joni Mitchell - God Must Be a Boogie Man (Mingus Early Alternate Version, Electric Lady Studios, New York and A&M Studios, Hollywood, CA, 1978 & 1979)
LP 4:
1. Joni Mitchell - Sue and the Holy River
2. Joni Mitchell - Jericho (1979 Tour Rehearsals, SIR Rehearsal Studios, Los Angeles, CA)
3. Joni Mitchell - Help Me (1979 Tour Rehearsals, SIR Rehearsal Studios, Los Angeles, CA)
4. Joni Mitchell - Big Yellow Taxi (1979 Tour of the United States, Live at Forest Hills Tennis Stadium, Queens, NY, August 25, 1979)
5. Joni Mitchell - Just Like This Train (1979 Tour of the United States, Live at Forest Hills Tennis Stadium, Queens, NY, August 25, 1979)
6. Joni Mitchell - Raised On Robbery (1979 Tour of the United States, Live at Forest Hills Tennis Stadium, Queens, NY, August 25, 1979)
7. Joni Mitchell - The Last Time I Saw Richard
8. Joni Mitchell - Intro to a Chair in the Sky (Live at Greek Theatre, Los Angeles, CA, September 13, 1979)
9. Joni Mitchell - A Chair in the Sky (Live at Greek Theatre, Los Angeles, CA, Sept