For students
Plug your keyboard into your laptop. Melodio names every chord you play, shows its notes and intervals, the scale it belongs to and how to play it on guitar. Free, at home, no account.
Also available for macOS and Linux · Version 2.0
What you learn
Melodio never asks you to read a chapter first. You play, it explains, using the notes you just pressed.
Major, minor, sevenths, sus, slash chords: why each one is called what it is.
Chord Display
The distance between two notes: thirds, fifths, sevenths, and how they colour a chord.
Chord Dictionary
Major, minor, harmonic, the seven modes, with fingerings for each hand.
Scales
Every chord you play on keys, shown as a guitar shape on the neck.
Chord Display
Why G7 is called V7 in C, and how the same chord changes role in another key.
Circle of Fifths
ii–V–I, I–V–vi–IV and the chord moves behind the songs you know.
Progressions
The chord you play, written on the staff, so the page and the keys finally match.
Chord Display
Hear a chord, find it, play it faster each time, until you don't need to think.
Chord Quiz
Learn with your keyboard
Each module answers one question you have at the piano, using the notes you are holding down right now.
Understand · Chord Display
Hold any notes and read the answer: the chord's name, each note with its interval from the root, the inversion, and its degree in the key. The same chord appears as a guitar shape and on the staff.
C → E4 HALF-STEPS · MAJOR THIRD
Theory · Intervals
Every key, black or white, is one half-step. Four of them make a major third, three a minor third. Melodio labels each note of your chord this way.
C · E · GMAJOR THIRD + MINOR THIRD
Theory · Chords
A major third then a minor third gives a major chord. Swap them and it turns minor. Add one more third and you have a seventh chord.
KEY OF CONE CHORD PER NOTE OF THE SCALE
In G major, the same G becomes I.
Theory · Keys
Inside a key, each chord gets a Roman numeral: I is home, V pulls back to it. Pick the key on the Circle of Fifths and Melodio numbers everything you play.
Look up · Chord Dictionary
Type any chord name. See its notes, each interval in colour, the voicings on piano and the shapes on guitar, then hear it played back.
Practise · Scales
Major, minor, harmonic and the seven modes, with left and right hand fingerings, and the chords each scale gives you.
Train · Chord Quiz
Melodio names a chord, you play it. It tells you which note is missing, keeps your score and gets faster as you do.
Understand · Circle of Fifths
Pick a key on the circle: neighbours share notes, the inner ring shows the relative minors, and every module follows the key.
Practise · Progressions
Capture the chords you play, or start from ii–V–I and I–V–vi–IV. Melodio shows the smoothest way to move between them, loops it at your tempo and tells you what usually comes next.
Questions students ask
Download
Free, no account needed. Your first chord name is one key press away.