Articles
Learn music theory — scales, chords, modes, and harmony explained for all levels.

Genre Deep Dives
The ii–V–I Progression in Jazz: Theory and Application
Master the ii–V–I, the most important chord progression in jazz. Learn how it works harmonically, how to voice it on …

Chord Theory
Suspended Chords: Sus2, Sus4, and the Art of Tension
Learn how suspended chords are built by replacing the third with the second or fourth, why they create tension, and how …

Music Fundamentals
What Are Intervals and How to Identify Them by Ear
Learn what musical intervals are, how to measure them in half steps, and practical techniques for recognising them by …

Music Fundamentals
How to Analyse Any Song's Harmony in 5 Steps
A practical five-step framework for harmonic analysis. Learn to identify the key, label chords with Roman numerals, spot …

Scale Theory
The Double Harmonic Scale: From Miserlou to Metal
Explore the double harmonic scale — its unique interval structure, Middle Eastern roots, and use in surf rock, metal, …

Tools and Features
See Your Scales and Chords on the Guitar Fretboard
The Interactive Chord Finder now includes a guitar fretboard view. Switch between piano and guitar to see scale notes, …

Music Fundamentals
How to Transpose a Song to Any Key
Learn how to transpose a song to a different key using intervals, the number-system method, and the circle of fifths. …

Tools and Features
Practice Chord Recognition with the Chord Practice Tool
Strengthen your chord knowledge with the new Chord Practice tool. Choose a scale or random mode, set your tempo, and …

Tools and Features
Explore Scales and Chords with the Interactive Chord Finder
A guided tour of the Interactive Chord Finder. Learn how to select keys and scales, read the piano keyboard, build chord …

Chord Theory
Chord Inversions and Voice Leading – Smoother Harmony for Any Instrument
Understand chord inversions, how they work for triads and seventh chords, and learn voice leading techniques that make …

Scale Theory
Pentatonic Scales for Improvisation in Any Genre
Learn how the major and minor pentatonic scales work, why they sound good over almost anything, and how to use them for …

Music Fundamentals
Chord Progressions Every Musician Should Know
Master essential chord progressions — I-IV-V, I-V-vi-IV, ii-V-I, and more. Understand their emotional qualities and hear …

Chord Theory
Extended Chords and Jazz Harmony: 9ths, 11ths, and 13ths
Explore extended chords — 9ths, 11ths, and 13ths — how they're built by stacking thirds beyond the 7th, and their role …

Scale Theory
Modes Explained: From Dorian to Locrian
Understand the seven musical modes — Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, and Locrian — their unique …

Chord Theory
Seventh Chords: A Complete Guide to maj7, min7, dom7, and More
Learn how seventh chords are constructed and what makes each type unique — major 7th, minor 7th, dominant 7th, …

Scale Theory
Minor Scales Explained: Natural, Harmonic, and Melodic
Explore the three types of minor scales — natural, harmonic, and melodic — their construction, differences, and when to …

Chord Theory
Diatonic Chords: A Beginner's Guide to Building Chords from Scales
Discover how diatonic chords are built by stacking thirds from a scale. Learn the Roman numeral system and understand …

Music Fundamentals
The Circle of Fifths Explained: Your Key to Understanding Music
Master the circle of fifths — understand key signatures, sharps and flats, and how keys relate to each other in this …

Scale Theory
Understanding the Major Scale: The Foundation of Western Music
Learn how the major scale is constructed using whole and half steps, and explore all 12 major scales with their …