Jazz & Popular Harmony
Jazz Chord Voicings: Shell and Rootless Voicings Explained
Shell and rootless voicings keep the third and seventh of each chord and leave room for a bass player. Worked examples use Dm7, G7 and Cmaj7.
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Glossary
Articles
Fundamentals
Church Modes From Dorian to Locrian: A Practical Guide
Dorian, Phrygian, Lydian, Mixolydian, Aeolian and Locrian explained by pattern and color, with hearing tips and modern uses.
Harmony
Diatonic Chords in Major and Minor Keys Explained
Diatonic chords are the triads built on each scale degree from the key's own notes. Here are their qualities in major and minor, worked out in C and A.
Music History
Gregorian Chant and Neumes: How Early Scribes Wrote Melody
Gregorian chant is unaccompanied Latin liturgical song. Neumes were the signs that recorded its melodies, first showing only the direction of movement and later placed on lines.
Harmony
Seventh Chords and How They Resolve in Tonal Harmony
The chordal seventh falls, the leading tone rises, and the tritone at the centre of V7 resolves by step. What each diatonic seventh chord is for.
Orchestration
Woodwind Doubling and Balance in Orchestral Writing
Which woodwind doublings blend and which stick out: unisons, octaves, registers, dynamics, and practical balance.
Harmony
Non-Chord Tones: Passing, Neighbour, Suspension and More
A non-chord tone is a note that sounds over a chord without belonging to it. Here are the main types, how each is approached and left, and how to write them.
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Acoustics & Sound
Timbre and Overtones: Why the Same Note Sounds Different
Timbre is the shape of a note's spectrum: which partials are present, how strong they are and how the sound begins. Here is why a clarinet, a flute and a piano differ on the same pitch.
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Songwriting & Composition
How to Write a Melody Over Chords, Note by Note
Put chord tones on strong beats, approach tension notes by step, and keep the line singable. A worked melody over C, G, Am and F shows each choice.
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Orchestration
String Bowing and Articulation: A Practical Arranger Guide
Legato, detache, spiccato, staccato, martelé: what each bowing sounds like, how to mark it, and writing playable string parts.
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Tuning & Temperament
Pythagorean Tuning: How Stacked Pure Fifths Build a Scale
Pythagorean tuning builds every interval from pure 3:2 fifths. Here is the seven-note scale it produces, its whole tones and semitones in cents, and the wolf fifth it leaves behind.
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Tuning & Temperament
Equal Temperament: What It Costs and What It Buys
Twelve equal semitones solve the problem pure intervals create. The cost is small in fifths, large in thirds, and paid by every fixed-pitch instrument.
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Harmony
Voice Leading: Why the Rules Exist in Four-Part Writing
Parallel fifths, tendency tones, spacing and doubling, read as solutions to one problem: keeping four lines heard as four lines.
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Jazz & Popular Harmony
Chord Extensions Explained: Ninths, Elevenths and Thirteenths
Ninths, elevenths and thirteenths are chord tones stacked above the seventh. Which of them fit a chord depends on its quality, and some clash with the third.
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Guitar & Fretboard
CAGED System Explained: Five Shapes That Cover the Neck
CAGED turns five open chords into movable shapes. This explains how the shapes connect, how to name a moved chord from its root string, and how to find one chord in several places.
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Guitar & Fretboard
Capo and Transposition: How a Capo Changes the Key
A capo raises every open string by one semitone per fret, so a G shape played at fret 2 sounds in A. This shows how to find the sounding key and how to choose a capo position.
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Fundamentals
The Major Scale Formula: Whole and Half Steps Explained
The major scale is seven notes spaced whole, whole, half, whole, whole, whole, half. Here is the formula, four scales built from it, and the sharps and flats it forces.
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Fundamentals
Relative and Parallel Keys Explained: Major and Minor Partners
A major key has two close minor partners. The relative minor shares its key signature, the parallel minor shares its tonic, and each pair connects keys in a different way.
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Tuning & Temperament
What Are Cents? The Unit That Measures Small Pitch Differences
A cent is one hundredth of an equal-tempered semitone. Here is the formula, what the common intervals measure in cents, and what a tuner is showing you.
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Tuning & Temperament
Just Intonation, Beating and Why Intervals Sound in Tune
Pure intervals come from small whole-number ratios, and beating is what stops them sounding pure. What just intonation gives, and what it cannot fix.
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Tuning & Temperament
Meantone and Well Temperament: Why Keys Used to Sound Different
Quarter-comma meantone, the wolf fifth and the well temperaments in between: what keyboard tuning did to each key before equal temperament settled the argument.
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Fundamentals
Reading Intervals at Sight: Generic and Specific
Naming an interval at sight takes two passes: count the staff positions first, then judge what the accidental does to the size.
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Ear Training & Practice
Ear Training for Intervals: A Method You Can Practise Daily
Interval recognition comes faster with a method: three intervals tied to a tonic, sung before they are named, and a short daily routine you can keep.
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Harmony
Suspended Chords: Sus2 and Sus4 Explained
A sus chord swaps the third of a triad for the second or fourth. Here is what Csus2 and Csus4 contain, why neither is major or minor, and how they resolve.
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Harmony
Chord Symbols Explained: Major, Minor, Seventh and Slash Chords
A chord symbol names the root, the quality, the extra notes and the bass. Here is how to read Cmaj7, C7, Cm7, C/E and C7b9, and the notes each one contains.
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Acoustics & Sound
The Harmonic Series: Why Octaves, Fifths and Thirds Come First
A vibrating string or air column sounds a fundamental and a set of partials at whole-number multiples of it. Here are the first sixteen, their cents, and where they differ from equal temperament.
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Harmony
Augmented Sixth Chords: Italian, French and German Types
Italian, French and German sixth chords: how each type is built, how they resolve to V, and their use in enharmonic modulation.
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Counterpoint
Canon Types and Techniques: Rounds to Crab Canons
Strict and free canon, interval and time distance, inversion and crab canons: how canons work and how to write a singable one.
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Ear Training & Practice
How to Transcribe Music by Ear: A Step-by-Step Procedure
Transcribe by ear in a fixed order: key and bass first, then chords by root and quality, then the melody by scale degree, and rhythm last.
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Counterpoint
Types of Motion in Voice Leading: Parallel, Contrary, Oblique
Parallel, similar, oblique and contrary motion defined between two voices, what each does to their independence, and which one counterpoint prefers.
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