The lab
Tools that work in the browser.
Each one comes from a chapter of the book. No accounts, nothing saved, nothing to install — open it, use it, close it. Teachers: project them freely.
On the shelf
From 01.9 · TriadsOpen
Chord Identifier
Play or type the notes; get the chord, its inversion, and where it tends to go.Open →From Units II–IVOpen
Quizzes
Modes, secondary dominants, phrasing, modulation. Scored in the browser, forgotten on reload.Choose a quiz →From 01.4 · ScalesComing
Circle of Fifths
Click a key and see its whole family — I, ii, iii, IV, V, vi — spelled properly, with the three functions in colour. Flip the enharmonic seats. The small one is on the homepage; the full tool is not yet.Try the small one on the homepage →From 02.7 · BluesComing
Blues Builder
Assemble a twelve-bar from its parts and hear what each choice does.Not yetQuizzes
- Modes & ModalityHearing the seven colours of the major scale.
- Pop Theory — Modes & ModalityThe diatonic modes in pop practice: characteristic scale degrees, white-key derivations, and the canonical repertoire.
- Pop Theory — ModulationPivot chords, direct (truck driver's) key changes, relative and parallel keys, and the famous final-chorus lifts.
- Pop Theory — Phrasing, Cadence & Harmonic RhythmPhrase lengths, cadence types, and harmonic rhythm — how pop music breathes, punctuates, and paces its chord changes.
- Pop Theory — Secondary FunctionSecondary dominants and secondary leading-tone chords: spelling them, spotting them, following where they resolve.
- Secondary Dominants — Name the Roman NumeralIn a given key, which Roman numeral is the secondary dominant that tonicizes ii, V, VI…?
- Secondary Dominants — Name the Tonicized ChordIn a given key, A7 (or F7, or C7) tonicizes which chord?
- Secondary Dominants — Spell the ChordIn a given key, which dominant-seventh chord tonicizes Dm (or B♭, or F)?