The Art of Jazz Reharmonization: Utilizing Tritone Substitutions, Coltrane Changes, and Upper Structure Triads to Transform Pop and Folk Melodies

Learning Goal:
Master the theoretical mechanics and practical keyboard/instrumental application of advanced jazz harmony. By the end of this curriculum, you will be able to dissect simple folk and pop melodies and completely transform them using functional harmony, tritone substitutions, altered dominants, upper structure triads, and Coltrane changes.

  • Prerequisites: Basic knowledge of keyboard/fretboard layout and elementary treble/bass clef reading.
  • Estimated Total Study Time: 30 Hours

Module 1: Foundations of Music Theory & Chord Construction

To successfully reharmonize a melody, you must first master the raw structural materials of music. This module builds your foundational understanding of melodic intervals, major and minor scales, and the systematic assembly of seventh chords—the primary building blocks of jazz.

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This extensive section covers the construction and analysis of chords. Melody is defined as a single line of music derived from scales. Triads are three-note chords built by taking every other note from a scale. Major and minor triads differ only in the middle note (third). Chord progressions build multiple chords from the same scale. Roman numerals indicate chord positions: uppercase for major, lowercase for minor. In major scales: I=major, ii=minor, iii=minor, IV=major, V=major, vi=minor, vii°

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This video is a premier visual introduction to the core physics of pitch. It systematically breaks down how major and minor scales are derived and demonstrates how basic triads are stacked by taking alternating scale degrees. It establishes a perfect cognitive bridge between single-note melodies and harmonic clusters.

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An interval is the measurement of pitch distance between two notes, ranging from 1 through 7, and also including 9ths, 11ths, and 13ths. Key modifiers include major, minor, perfect, augmented, and diminished. Perfect intervals relate to octaves, fourths, and fifths, while major/minor intervals relate to seconds, thirds, sixths, and sevenths. Minor seconds are half steps, major seconds are whole steps. The major scale is a seven-note diatonic scale formed by the pattern: whole step, whole step, h

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To build seventh chords, extend the cycle of thirds by adding the seventh note. For C major: C (root), E (third), G (fifth), B (seventh). For D minor: D (root), F (third), A (fifth), C (seventh). For E minor: E (root), G (third), B (fifth), D (seventh). For F major: F (root), A (third), C (fifth), E (seventh). For G major: G (root), B (third), D (fifth), F (seventh). For A minor: A (root), C (third), E (fifth), G (seventh). For B diminished: B (root), D (third), F (fifth), A (seventh).

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A dominant seventh chord uses the 1st, 3rd, 5th, and flattened 7th scale degrees. Unlike minor seventh chords, the third remains major (not flattened). The key distinction from major seventh chords is the flattened seventh. For C major: C (1), E (3), G (5), and Bb (flat 7) form C7. In notation, dominant seventh chords are typically written simply as C7, though they may also appear as Cdom7 or Cdom. This chord type is fundamental in blues, jazz, and popular music due to its strong resolution tend

@patdavidmusic · 03:27

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Addressing a critical feedback gap, this video clearly details the structural differences between major 7th, minor 7th, dominant 7th, and half-diminished/diminished 7th chords. It outlines how altering a single scale degree (such as flatting the 3rd or the 7th) completely changes a chord's harmonic function and emotional color.

Knowledge Checkpoint

  • You can define and construct all diatonic intervals (m2 through Maj7) from any given root note.
  • You can write down the step formula for both Major scales (W-W-H-W-W-W-H) and Natural Minor scales.
  • You can explain the "Circle of Thirds" and use it to instantly spell a Cmaj7, Dm7, and G7 chord.
  • You can list the specific interval spelling formula for major 7th (1-3-5-7), minor 7th (1-b3-5-b7), and dominant 7th (1-3-5-b7) chords.

Module 2: Functional Harmony & The Jazz ii-V-I Progression

Once chords are built, they must be arranged to create motion. This module introduces Roman numeral analysis, functional harmony (tonic, subdominant, dominant), and the mechanics of the iconic ii-V-I chord progression. You will also learn how to decode these elements directly from a jazz lead sheet.

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Directly addressing the lead sheet interpretation gap, this video teaches beginners how to approach fake books and real books. You will learn how to identify chord qualities from standard shorthand symbols and extract the underlying harmonic skeleton of a song.

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This video reveals how to interpret the rigid notations of a lead sheet with a flexible jazz mindset. It teaches you how to look past the written notes to apply authentic swing phrasing, syncopation, and chordal fills, transitioning you from a passive reader to an active arranger.

Knowledge Checkpoint

  • You can perform Roman numeral analysis on a standard chord progression, identifying the tonic (I or i), subdominant (ii or IV), and dominant (V) functions.
  • You can spell the ii-V-I progression in the keys of C Major, F Major, and Bb Major.
  • You can locate a song's melody, key signature, and chord symbols on a standard jazz fake book page.
  • You can explain why jazz musicians do not play lead sheets strictly as written, detailing how they adapt the rhythm and voicings.

Module 3: Tritone Substitutions & Altered Dominants

This module introduces chromaticism and tension generation. You will master the mechanics of the tritone substitution—one of the defining sounds of jazz reharmonization—along with the altered dominant scale and voice-leading techniques used to guide tense dominant chords smoothly into tonic targets.

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Tritone substitution is a reharmonization technique where a dominant 7th chord is replaced with another dominant 7th chord a tritone (three whole steps or six half steps) away, as both chords share the same third and seventh intervals, allowing them to be used interchangeably; this technique creates smooth chromatic voice leading in 251 progressions and enables access to more interesting extensions and alterations.

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Altered dominant chords are dominant chords (default chords) that have been modified by including sharp five, flat five, sharp nine, or flat nine. The 7alt symbol represents any altered dominant chord. There are hundreds of possible variations, so coordination with other musicians is needed to determine the exact voicing.

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This quick guide simplifies the complex nomenclature of altered chord symbols. It explains exactly what notation symbols like 7alt, 7(#9), or 7(b13) mean, preparing you to read and write advanced chord symbols during reharmonization.

Knowledge Checkpoint

  • You can identify the shared tritone interval between any two dominant seventh chords a tritone apart (e.g., the 3rd and 7th of G7 are the 7th and 3rd of Db7).
  • You can substitute a standard ii-V-I progression (e.g., Dm7 - G7 - Cmaj7) with a tritone-substituted progression (Dm7 - Db7 - Cmaj7) and explain the resulting chromatic bass movement.
  • You can build a dominant 7alt chord by spelling its scale degrees: 1, 3, b7, along with the altered tensions (b9, #9, b5/#11, #5/b13).
  • You can explain why the altered scale is also known as the 7th mode of the melodic minor scale (e.g., G altered is derived from Ab melodic minor).

Module 4: Upper Structure Triads (UST) for Rich Voicings

Upper Structure Triads (USTs) provide a streamlined, highly effective method for playing complex altered dominants. By stacking a simple major or minor triad in your right hand over a basic dominant chord shell (root-3rd-7th) in your left hand, you can instantly produce sophisticated, modern jazz colors.

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Upper extension triads are three-note chords added to dominant seventh chords to create specific jazz sounds: a D major triad (D-F#-A) creates a Lydian dominant sound with sharp 11, an F# minor triad (F#-A-C) creates a flat 9 sound with sharp 11, and an Ab triad in second inversion (C-Eb-Ab) creates an alter dominant 7 sound with flat 13 and sharp 9.

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Knowledge Checkpoint

  • You can explain the "split-hand" concept of voicing upper structure triads on the keyboard or fretboard.
  • You can identify which extensions are highlighted when you play a D major triad over a C7 shell (C-E-Bb), and name the resulting parent scale (C Lydian Dominant).
  • You can calculate and play the "US bVI" formula (e.g., playing an Ab major triad over a C7 shell) to generate #9 and b13b13 tensions.
  • You can list at least three distinct UST formulas and describe the specific harmonic colors they produce.

Module 5: Coltrane Changes & Third-Relation Harmony

John Coltrane’s "Giant Steps" revolutionized jazz harmony by abandoning traditional fifth-relationship chord movements in favor of symmetric divisions of the octave by major thirds. This module covers Coltrane's multi-tonic system and explains how to insert these changes into standard ii-V-I progressions.

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Coltrane changes, originally used over Giant Steps, can be applied to regular jazz standards by superimposing the three-key-center cycle (Bmaj7-Gmaj7-Ebmaj7 with dominant chords in between) over a standard 251 progression, creating tension that resolves at the end; effective playing techniques include using major triads over each chord or the 1-2-3-5 pattern with creative permutations.

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Coltrane Changes are a jazz piano reharmonization technique where key centers change by intervals of major thirds (creating an augmented triad shape), as opposed to the traditional key modulation methods of the cycle of fifths, whole steps, or half steps used in early jazz standards; this technique, pioneered by John Coltrane in his song 'Giant Steps,' allows pianists to reharmonize common jazz progressions like II-V-I, III-VI-II-V, and I-VI-II-V by systematically moving down in major thirds whi

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This video provides a step-by-step keyboard guide to Coltrane substitutions. It demonstrates how to insert intermediate dominant seventh chords to connect three tonics a major third apart, outlining the precise chord-by-chord voice leading required for smooth performance.

Knowledge Checkpoint

  • You can list the three key centers of the standard "Giant Steps" cycle (B major, G major, Eb major) and show how they form an augmented triad.
  • You can write out the chord substitution pattern used to replace a standard ii-V-I in C major (Dm7 - G7 - Cmaj7) with Coltrane Changes.
  • You can explain how intermediate dominant chords (V7 of the next key center) are inserted to smoothly transition between key centers a major third apart.
  • You can define "third-relation harmony" and explain how it differs from traditional circle-of-fifths movement.

Module 6: Reharmonizing Pop & Folk Melodies

This module brings together all the concepts you have learned. You will apply functional harmony, tritone substitutions, USTs, and Coltrane Changes to simple pop and folk melodies, turning them into sophisticated jazz arrangements.

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This segment introduces the core concept of reharmonization using a single melody note. The exercise involves choosing one melody note (e.g., F) and moving the bass note up and down in half steps while finding appropriate chords. When the bass is F, any F chord works. When the bass moves to G-flat, the F becomes the major 7th, allowing chords like G-flat major 7 or major 9. When the bass moves to G natural, the F becomes the minor 7th, enabling minor chords like G minor 11. This demonstrates how

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This tutorial demonstrates how to reharmonize a gospel song like Amazing Grace by adding jazz elements such as dominant 7th chords with alterations (sharp 9, sharp 11), passing chords, secondary dominants, and chromatic bass lines, transforming a simple chord progression into a sophisticated jazz arrangement while maintaining the song's core harmonic structure.

@thegiftedhandsmusic · 25:24

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This masterclass walks you through a complete reharmonization of the folk hymn "Amazing Grace." It shows you how to take a simple, pentatonic melody and apply passing chords, secondary dominants, and altered extensions to build a modern gospel-jazz arrangement.

Knowledge Checkpoint

  • You can reharmonize a simple folk melody (like "Amazing Grace" or "Twinkle Twinkle") using a step-by-step arrangement template.
  • You can practice the single-note reharmonization exercise, finding at least five different chords (diatonic, altered, and substituted) to support a single sustained pitch.
  • You can arrange a pop song melody using jazz block voicings (root-3rd-5th-7th/6th) and add 9th and 11th extensions.
  • You can identify places in a pop standard where a standard ii-V progression can be replaced with a tritone substitution or Coltrane Changes.

Course Map

Key People Index

  • John Coltrane (1926–1967): A pioneering jazz saxophonist and composer who introduced the "Coltrane Changes" on his 1959 album Giant Steps. His work challenged traditional functional harmony and introduced symmetric, third-relation key modulations to modern jazz.
  • Kent Hewitt: A seasoned jazz pianist and educator known for his structured, step-by-step approach to transforming simple pop and classical melodies into sophisticated jazz arrangements.
  • Jens Larsen: A prominent jazz guitarist and music theorist recognized for his detailed lessons on chromatic voice leading, chord voicings, and practical fretboard harmony.

Final Self-Assessment

Complete this comprehensive self-assessment to verify your mastery of the curriculum:

  • Chord Construction: Spell any major 7th, minor 7th, dominant 7th, or half-diminished chord from any of the 12 chromatic roots without hesitation.
  • Roman Numeral Analysis: Analyze a standard jazz lead sheet and correctly identify all ii-V-I progressions, key modulations, and chord functions.
  • Tritone Substitution: Take any ii-V-I progression and replace the V7 chord with a dominant seventh chord a tritone away (e.g., swapping G7 for Db7), maintaining smooth voice leading.
  • Altered Scale Spelling: Write out the altered scale for any dominant root (e.g., G altered: G, Ab, Bb, B, Db, Eb, F) and identify its parent melodic minor scale (e.g., Ab Melodic Minor).
  • UST Voice Leading: Formulate and play an Upper Structure Triad voicing over a dominant 7th chord (e.g., playing a D major triad over C-E-Bb) and resolve it smoothly to a tonic target.
  • Coltrane Changes Geometry: Map out the three key centers of a Coltrane cycle on the circle of fifths and explain how they divide the octave symmetrically.
  • Coltrane Changes Insertion: Write out and perform a Coltrane Changes substitution (e.g., Cmaj7 - Eb7 - Abmaj7 - B7 - Emaj7 - G7 - Cmaj7) over a standard 4-bar ii-V-I progression.
  • Single-Note Reharmonization: Take a single melody note (such as C) and harmonize it with five different chord qualities (e.g., Abmaj7, Am7, D7b9, F#m11, Db7#11).
  • Arrangement Project: Create and perform a complete, 32-bar jazz reharmonization of a simple folk or pop melody (e.g., "Amazing Grace" or "Yesterday") that features at least two tritone substitutions, three upper structure triad voicings, and one Coltrane Changes insertion.
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