Di-Chord Root Movements — The Harmonic Spine

You Are Here

Sprint 1 — Ain't No Sunshine

You already own [3] and [4] by sound (the quality di-chords from the Plogger system).

In Ain't No Sunshine you are hearing these root movements — your ear is already filing them — but you don't own them as movements yet. That comes sprint by sprint.

Am → G

root moves down a whole step

[2] down (or [10] up)

own it in Sprint 4

G → Em

root moves down a minor 3rd

[3] down

own it in Sprint 5

Em → Am

root moves up a perfect 4th

[5] up

own it in Sprint 2 — coming next

The Harmonic Movement Sequence

Sprint 2

[5]

Perfect 4th (P4)

I→IV (opens) · V→I (resolves) · Em→Am in Ain't No Sunshine

Coming Next

Sprint 3

[7]

Perfect 5th (P5)

I→V (dominant reach)

Coming Next

Sprint 4

[2]

Major 2nd (M2)

IV→V (tension) · V→vi (deceptive) · Am→G in Ain't No Sunshine

Later

Sprint 5

[3]

Minor 3rd (m3)

I→vi (darkening) · G→Em in Ain't No Sunshine

Later

Sprint 6

[9]

Major 6th (M6)

vi→IV (lift)

Later

Sprint 7

[4]

Major 3rd (M3)

I→iii (mediant)

Later

Sprint 8

[6]

Tritone (TT)

V7→I (resolution)

Later

Sprint 9–12

[10][8][1][11]

Chromatic Movements

Minor 7th · Minor 6th · Minor 2nd · Major 7th

Advanced

The Insight — Plogger to Harmony Connection

When you learn [5] in Sprint 2, you are not learning a new sound. You are naming a sound you already know from the Plogger system. The harmonic movement sequence and the di-chord ear training system are the same ear, operating at two different levels. Every sprint adds one more movement to the map — until every chord change you hear has a number, a color, and a name.