Major
CTriads1 · 3 · 5 · in C: C E G
The home chord. Stable, finished, and the reference every other quality is measured against.
Reference · one-time purchase
The ChordCraft Library
Every chord formula, scale, mode, named progression and theory explainer behind ChordCraft Lab — 106 entries, spelled in C, searchable, and written to be used at the keyboard rather than memorised.
What's inside
- 34 chords — Every chord quality with its formula, its spelling in C, and what it's actually for.
- 26 scales & modes — Modes, minor forms, pentatonics, symmetrical and exotic scales — with the sound of each.
- 32 progressions — Named progressions in roman numerals and in C, from four-chord pop loops to Coltrane changes.
- 14 theory — Written explainers that connect the tables: intervals, function, voice leading, substitution, form.
How it works
- Everything is spelled in C so the shapes line up. Transpose the formula, not the notes.
- One search box across all four sections — type "dominant", "modal" or "cadence".
- $29 once, lifetime access — no subscription, and free updates as it grows.
- Already a Pro member? It's included with your plan — just sign in.
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The first few entries of each section are open. $29 unlocks all 106 entries on this page, permanently.
Minor
CmTriads1 · ♭3 · 5 · in C: C E♭ G
Same skeleton as major with the third lowered a semitone. That one note carries the whole mood change.
Diminished
C°Triads1 · ♭3 · ♭5 · in C: C E♭ G♭
Two stacked minor thirds. Unstable on purpose — use it as a passing chord between two stable ones.
Augmented
C+Triads1 · 3 · ♯5 · in C: C E G♯
Raised fifth pulls upward. Perfect as a one-bar lift between I and vi, or under a rising melody.
30 more chords entries are locked.