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.
Search
Type a chord symbol or a scale name and go straight to it, or search tools, glossary terms and every article. Results are ranked by where the words appear.
Articles
Counterpoint
Parallel Fifths and Octaves: Why the Rule Exists
Parallel fifths and octaves are voices that move together and keep a perfect interval. Here is why strict voice leading forbids them and where the rule bends.
Fundamentals
Circle of Fifths Explained: Keys, Signatures, Changes
The circle of fifths organizes every key by signature and closeness. How to read it, memorize it, and use it for modulation and chord choice.
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.
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.
Harmony
Borrowed Chords: Modal Mixture in Practice
Mixture borrows chords from the parallel mode. What the common borrowed chords do to a phrase, how they resolve, and where labelling fails.
Harmony
The Neapolitan Sixth Chord: Sound, Spelling, Resolution
The flat-II chord that darkens minor keys: how the Neapolitan sixth is built, voiced, resolved, and used from Bach to Schubert.
Songwriting & Composition
Common Chord Progressions: Loops, Numerals and Why They Work
The chord loops that songwriters reuse most, in Roman numerals and in the keys of C and G, with the reasons they work and how to vary them.
Form
Rondo Form: How Refrains and Episodes Structure a Movement
Rondo form alternates a returning refrain with contrasting episodes. Learn classical key plans, sonata-rondo hybrids, and why refrains return altered.
Counterpoint
First Species Counterpoint, Rule by Rule
Species counterpoint isolates one compositional decision at a time. First species isolates the hardest one: how to make two voices sound like two voices.
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.
Harmony
Harmonic Sequences and Circle Progressions That Modulate
Descending fifths, ascending 5-6 patterns, Pachelbel loops: how sequences work, when they modulate, and how to write them.
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
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.
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.
Music History
Baroque Ornamentation: Trills, Mordents and Turns
Execute trills, mordents, turns and appoggiaturas correctly: on-beat starts, national styles, and reading ornament tables.
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.
Form
Theme and Variations Form: Ornament to Transformation
How variation form works: the fixed theme, ornamental and character variations, and strategies from Haydn to Beethoven.
Harmony
Triads and Inversions: Root Position, Sixth, Six-Four
Root position, first and second inversion: how triad voicings shape the bass line, when to invert, and what the figures mean.
Counterpoint
Imitation and Invertible Counterpoint
Imitation makes one idea serve two lines. Invertible counterpoint makes those lines interchangeable, and the arithmetic behind it is small enough to check.
Harmony
Secondary Dominants and How Tonicization Works
A secondary dominant makes any chord a temporary tonic. How to spell one, where it turns up, and what cancels the effect.
Orchestration
Woodwind Doubling and Balance in Orchestral Writing
Which woodwind doublings blend and which stick out: unisons, octaves, registers, dynamics, and practical balance.
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.
Partial match: some of your words are not in this article.
Harmony
Modulation: How a Key Change Is Confirmed
A modulation is not a chromatic chord; it is a new key confirmed by cadence. The routes into one, and how to read them off the page.
Partial match: some of your words are not in this article.
Fundamentals
Key Signatures and the Order of Sharps and Flats
Sharps arrive in the order F C G D A E B and flats in reverse. The order is the circle of fifths written out, one signature at a time.
Partial match: some of your words are not in this article.
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.
Partial match: some of your words are not in this article.
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.
Partial match: some of your words are not in this article.
Music History
The Rise of Functional Tonality: From Modes to Keys
Around 1600 the bass became the foundation of harmony and the modal system narrowed to two keys. What changed in the documents, and what the change cost.
Partial match: some of your words are not in this article.
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.
Partial match: some of your words are not in this article.
Fundamentals
How to Read Sheet Music: Staves, Clefs and Note Names
The staff, the treble and bass clefs, line and space names, ledger lines, and where the key and time signatures sit, with a table to learn from.
Partial match: some of your words are not in this article.