Here's a transcription of the song from Joni's Mingus recording in lead sheet form. The band substitutes and reharmonizes a lot so each verse Joni sings has different chords behind it. Charles Mingus was known for using a lot of dominant chords in his writing, especially altered dominants and this was the prevalent harmonic language in late 50's and early 60's New York jazz. The melody at letter B and C is derived from the John Handy tenor sax solo on the Mingus, Ah, Um album from 1959.

Dave Blackburn
beatntrack@att.net