12 roots · 17 types
The Chords
Root note
Chord type
20 scales · 12 keys
The Scales
Pick a key and a scale and the whole neck lights up. Zoom to a position for a five-fret box worth practising. Terracotta dots are the root; gold dots are blue notes.
10 progressions · any key
The Progressions
Classic changes in any key, from the 12-bar blues to flamenco cadences. Tap a chord to open its diagrams, or press Play to hear one chord per bar.
Field notes
The Guide
How to read a diagram, how to tune up, and why one barre shape plays every chord on the neck.