How Scales Are Born From Chords (1 Chord, 2 Chords, 3 Chords)

A chord is an unfinished scale. A triad gives you three notes; a scale needs seven. So the four notes you add are up to you — and that is where every scale comes from. In this lesson I build scales the unconventional way: not tone–tone–semitone, not from the modes, but from chords. One chord leaves four notes open to your imagination — D major alone gives you D major, D mixolydian, D lydian, D harmonic major, and it is also the dominant of G harmonic minor and G melodic minor. Two chords narrow it down to one or two notes: D major with G major gives you D major, D mixolydian, or G harmonic major if you make G the tonic; D major with G minor gives you the harmonic minors, melodic minors and harmonic majors; D major with B♭ major fits only one scale, and it is a beautiful one. Three chords and the scale is decided — D, G and B minor live in D major and in G major at the same time, and the functions simply swap. That is how chord charts work. You read chords and you interpret scales. You are not locked to a key signature — you let the chord, or the cadence, or the trio, dictate the scale. ✏️ Correction (05:45): I call the G minor triad “the fifth, or the dominant, of D Phrygian”. G is the FOURTH degree of D Phrygian (D E♭ F G A B♭ C) — the fifth is A — so G minor is the subdominant, the iv, of that scale. The very next sentence has it right: start from the chord and choose tonic, dominant or subdominant. Thanks to @aaditmodi1 for catching it. 📥 STUDY GUIDE + APP 🌳 CHORD TREES Pick a key and a scale and see every chord born from it — free in the browser: https://chord-trees.nathanielschool.com ▶️ WATCH NEXT Form ANY Scale in Music From 3 Perspectives: https://youtu.be/gunrSlNNiJU Major-Esque Scales You NEED To Know (Part 2): https://youtu.be/9aKo3JsXkMo Minor-Esque Scales Decoded (Part 3): https://youtu.be/_DbME-fKHiI Practice Every Scale on Piano Using Major-Minor Chord Pairs: https://youtu.be/kak4hvdjsY0 Play the Modes on Piano Using Just ONE Chord: https://youtu.be/GV3fAe9782o 🎹 LEARN WITH US Live online lessons, Bangalore centres and the Everything For Life bundle: https://nathanielschool.com 🛠 FREE PRACTICE TOOLS 25+ free browser tools for rhythm, chords, inversions, notation and ear training: https://apps.nathanielschool.com Chord Trees — every chord that fits any note: https://chord-trees.nathanielschool.com ⏱ CHAPTERS 00:00 - Performance 00:17 - Introduction: Building Scales Through Chords 🎹 00:44 - Six Major and Minor Triads Containing D 01:03 - A Triad as an Unfinished Scale 01:21 - How Two Chords Narrow the Choices 01:39 - How Three Chords Define a Scale 01:52 - Reading Chord Charts as Scale Information 02:20 - Letting Harmony Dictate the Scale 02:48 - Practice Setup at the Keyboard 03:18 - The D Chord Tree Explained 04:04 - Scales Supported by D Major 04:15 - D Major as Tonic or Dominant 04:25 - G Harmonic Minor and G Melodic Minor 05:20 - Exploring the G Minor Triad 06:00 - Dominant, Tonic and Subdominant Functions 06:27 - Bb Major Scale Possibilities 07:08 - Combining D Major and G Major 07:27 - Finding the Two Missing Notes 07:40 - D Major, D Mixolydian and Harmonic Major 08:30 - G Harmonic Major from Reinterpreted Chords 09:13 - Combining D Major and G Minor 09:28 - D7 Resolving to G Minor 10:00 - Unusual Two-Chord Scale Combinations 11:38 - D Major, G Major and B Minor 11:54 - Changing Functions in D Major and G Major 12:55 - D Minor, G Minor and Bb Major 13:35 - D Harmonic Minor or Natural Minor? 14:09 - Applying the Method to Improvisation and Composition 💛 SUPPORT THESE FREE LESSONS PayPal: https://paypal.me/jasonzac?locale.x=en_GB&country.x=IN UPI: jasonzac-1@okhdfcbank (Jason Zac) 📩 TALK TO US WhatsApp: https://wa.me/917760456847 Instagram: https://instagram.com/jasonzac · https://instagram.com/nathanielschool #ChordScales #PianoScales #MusicTheory