The map of every key. Click a slice to see its key signature, scale, diatonic chords and closest neighbours — and hear it. Going clockwise adds a sharp; anticlockwise adds a flat.
Neighbouring keys share almost all their notes — that's why they sound good together. The inner ring shows each key's relative minor (same notes, different home).
The circle of fifths puts all twelve keys in order. Each step clockwise adds a sharp to the key signature; each step anticlockwise adds a flat. C major, with none, sits at the top.
Click a key and the circle shows its key signature, its scale and its diatonic chords, and lets you hear it. The keys either side of it are its closest neighbours: they share all but one note, which is why songs move between them so easily. The inner ring gives each key’s relative minor, the minor key with the same notes and a different home note. Print the circle and keep it on your music stand.
Scale theory: how scales are built Chord theory: major, minor, diminished, augmented Scales: any scale on your instrument Chord charts to print What key are Irish session tunes in?