text: "Hora Decubitus" as "E's Flat, Ah's Flat Too" on Blues & Roots
  "Freedom" on The Complete Town Hall Concert (1962)
  Track listing
  Adapted from 1995 CD reissue; many original LP copies have incorrect durations listed. All tracks composed by Charles Mingus, except where noted.
  Personnel
  Tracks #1 and 4–8, recorded on September 20, 1963:
  Eddie Preston – trumpet
  Richard Williams – trumpet
  Britt Woodman – trombone
  Don Butterfield – tuba
  Jerome Richardson – soprano and baritone saxophone, flute
  Dick Hafer – tenor saxophone, clarinet, flute
  Booker Ervin – tenor saxophone
  Eric Dolphy – alto saxophone, flute, bass clarinet
  Jaki Byard – piano
  Charles Mingus – bass, narration ("Freedom")
  Walter Perkins – drums
  Bob Hammer – arranger and orchestrator
  Tracks #2 and 3, recorded on January 20, 1963:
  Rolf Ericson – trumpet
  Richard Williams – trumpet
  Quentin Jackson – trombone
  Don Butterfield – tuba
  Jerome Richardson – soprano and baritone saxophone, flute
  Dick Hafer – tenor saxophone, flute, oboe
  Charlie Mariano – alto saxophone
  Jaki Byard – piano
  Jay Berliner – guitar
  Charles Mingus – bass, piano
  Dannie Richmond – drums
  Bob Hammer – arranger and orchestrator
  Production
  Bob Thiele – producer
  Michael Cuscuna – reissue Producer
  Bob Simpson – engineer