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Conventional progression or cadence without tritone substitution, i.e., NOT Tadd Dameron turnaround. Play

In jazz, the Tadd Dameron turnaround, named for Tadd Dameron, "is a very common turnaround in the jazz idiom",^[1] derived from a typical I−vi−ii−V turnaround through the application of tritone substitution of all but the first chord, thus yielding, in C major:

| C

E♭⁷

| A♭⁷

D♭⁷

|

rather than the more conventional:

| C

Am⁷

|Dm⁷

G⁷

|

The Tadd Dameron turnaround may feature major seventh chords,^[2] and derive from the following series of substitutions, each altering the chord quality:^[2]^[3]

\| C^∆7	Am⁷	\| Dm⁷	G⁷	\| (original)
\| C^∆7	A⁷	\| D⁷	G⁷	\| (dominant for minor triad)
\| C^∆7	E♭⁷	\| A♭⁷	D♭⁷	\| (Dameron turnaround: tritone substitution)
\| C^∆7	E♭^∆7	\|A♭^∆7	D♭^∆7	\| (major for dominant seventh)

The last step, changing to the major seventh chord, is optional.

"One of the most famous improvised lines that outlines the Dameron turnaround"^[1]^[3] Play.

Dameron was the first composer^[3] to use the turnaround in his standard "Lady Bird", which contains a modulation down a major third (from C to A♭). This key relation is also implied by the first and third chord of the turnaround, C^∆7 and A♭^∆7.^[4] It has been suggested that this motion down by major thirds would eventually lead to John Coltrane's Coltrane changes.^[4] The Dameron turnaround has alternately been called the "Coltrane turnaround".^[3]^[5]

Further examples of pieces including this turnaround are Miles Davis' "Half-Nelson" and John Carisi's "Israel".^[1]

References

^ ^a ^b ^c Coker, et al (1982). Patterns for Jazz: A Theory Text for Jazz Composition and Improvisation, p.118. ISBN 0-89898-703-2.
^ ^a ^b Bahha and Rollins (2005). Jazzology, p.103. ISBN 0-634-08678-2.
^ ^a ^b ^c ^d Richard Lawn, Jeffrey L. Hellmer (1996). Jazz: Theory and Practice, p.118-19. ISBN 0-88284-722-8.
^ ^a ^b Lyon, Jason (2007). "Coltrane's Substitution Tunes", in www.opus28.co.uk/jazzarticles.html.
^ Scott, Richard J. (2003). Chord Progressions For Songwriters, p.234. ISBN 9780595263844.