Jared Forth
Jazz Theory

Jazz Theory: Body and Soul

August 18, 2021

Harmonic analysis of the jazz standard "Body and Soul" by Johnny Green.

Jazz Theory: Body and Soul

Body and Soul was composed by Johnny Green in 1930. The original key is Db and the song follows a 32-bar AABA form. This is a jazz harmonic analysis of the changes in Body and Soul, along with an explanation of the concepts used in the analysis. The image above shows my full analysis, which I will walk through below. You can refer to the conventions page for a deeper exploration of the analytic concepts used and get the PDF for free.

Section A

At the beginning of section A is a ii-7, V7/ii-7, ii-7 cadence. The V7/ii-7 is a secondary dominant that briefly tonicizes the ii but the piece does not modulate. Measure 2 has a subdominant, dominant, tonic cadence expressed as a ii-7, V7, IΔ7 which is followed by the Gb9 chord on beat 3 of measure 3.

I chose to mark the Gb9 as a tritone substitution of the secondary dominant V7/iii, but it could be thought of as a chord borrowed from a modal exchange because it is the IV, just a dominant 7 instead of a Δ7. We could think of this as coming from Db Dorian or Db Melodic Minor because both of these scales create a IV chord with a b7. We could also think of this as just a passing chord leading chromatically to the diatonic iii-7, which is F-7 in this case. We use our outline arrow here to represent a V7 resolving down a half step.

The iii-7, F-7, is followed by a passing diminished chord (biiio7) to lead to the subdominant ii-7. Measure 6 begins with a ii-7(b5), V7 secondary dominant with a related ii-7 cadence going to the vi-7. We then have a ii, V, I followed by a ii, V secondary dominant leading back to the ii-7.

The second ending for the second time through the A section has a ii-7, V7 modulating to the key of D for the B section.

Section B

This section begins with a diatonic IΔ7, ii-7, iii-7 progression in the new key of D. The next G-6 chord is a iv-, so it is not in the key. This can be thought of as a modal interchange chord borrowing from the Aeolian mode. The next measure is just a diatonic iii, vi, ii, V turnaround leading back to the tonic. Here we have the new "to minor" symbol where the DΔ7 leads to the D-7. The piece also modulates to C here, and the D-7 is the first of a ii-7, V7 in C. Instead of resolving to a C, the weeker tonic sound of iii-7 is used. We then have a passing biii diminished chord leading to another ii-7, V7. The V7 here does not resolve to the tonic, but rather to a I7. This could be thought of as a modal interchange chord from C Mixolydian but I marked it as the secondary dominant V7/IV. The next chord could be thought of as a passing chord or as a tritone substitution of the V7/IV. The final Bb7 is the V7/ii-7 in the key of Db, which leads us back to section A.