The CAGED System
Every chord you play near the nut ā C, A, G, E, D ā is a movable shape. Slide each one up the neck with a barre and the five shapes tile the entire fretboard, in that repeating order: CāAāGāEāDāCā¦ That's the whole CAGED system. Its power is what it organises: chords, arpeggios and scales all snap to the same five anchors.
The idea in 30 seconds
Take a C major chord. Play it open (the "C shape"). Now find C major again at the 3rd fret as an A-shape barre; at the 5th as a G shape; at the 8th as an E-shape barre; at the 10th as a D shape. Five positions, one chord, and the sequence C-A-G-E-D always holds ā for every chord, in every key. Wherever you are on the neck, you're inside one of five shapes, and you know which chord tones surround you.
Scales attach to the shapes
Each CAGED shape carries its own major-scale pattern built around the chord tones ā which is why so many method books teach "5 positions" of the major scale and the pentatonic: they're the CAGED shapes wearing scale clothing. The payoff for soloing is enormous: when the fretboard is five chord shapes rather than a fog of dots, "play the changes" means seeing the next chord's shape light up under your fingers.
A practice plan that works
- Week 1ā2: one shape (start with E ā it's every rock barre chord). Chord, then arpeggio, then the scale around it, in two keys.
- Week 3ā6: one new shape a week, always connecting to the previous one ā play a line that starts in the E shape and resolves in the D shape.
- Always: apply it over music. Loop a backing track, restrict yourself to one shape per chorus, then move shapes each chorus. JamLab draws the fitting scale box on a live fretboard per track, which is CAGED practice with the answer key open.
See every position of every scale ā interactive fretboard ā