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Courses/Stage 4

How the Barre Works: One Shape, the Whole Fretboard

Advanced9 minConquer F, read tab, and just-enough theory

Barre chords slide as a unit — learn one shape, and you unlock a whole region of chords at once.

Video lessons are in production — follow the notes and practice checklist below and you'll learn it just fine.
Stage 4 · Barre Chords & Music Basics6 lessons

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  1. Conquering the Big Barre: F10 min
  2. How the Barre Works: One Shape, the Whole Fretboard9 min
  3. Reading Tab and Rhythm Notation8 min
  4. Just Enough Theory9 min
  5. Chord Families and Common Progressions9 min
  6. Color Chords That Sound Great and Are Easy to Play9 min

A barre = a movable “capo”

Think of the index finger as a movable “nut.” Take an open-chord shape, add an index-finger barre, and you can slide the whole thing back to any fret to get a different chord.

The E-shape barre: F, G, A…

F is really just the open E chord shape slid back, with the index finger barring the 1st fret. Move that shape to the 3rd fret and it's G, to the 5th fret and it's A — the root is on the 6th string, so just count up by fret.

The A-shape barre and the B chord

Barre the A-major shape and the root sits on the 5th string. The B chord is that shape barred at the 2nd fret: index finger barring the 5th–1st strings at the 2nd fret, then the other fingers fretting at the 4th fret.

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Index: barre the whole rowFront of fretboard (barre 5)✕ThumbThumb: press the back centre (pinch)
  1. 1.Lay the index finger against the fret and barre the strings flat with the harder bony side of the finger (F is 6 strings, A-shape barres like B are 5) — not the soft front pad (the joint creases press unevenly).
  2. 2.The thumb opposes the index finger at the centre of the back of the neck (like pinching the neck); use that "pinch" for leverage rather than clamping with the arm.
  3. 3.Push the wrist slightly forward and tuck the elbow toward your body so the index finger presses naturally — rely on the cleverness of that pinch, not brute arm force.
  4. 4.Pluck each string in turn to find the dead one, then tweak the index finger's angle or pressure — the 2nd or 1st string is the most common offender.

The B chord = the A-shape barre at the 2nd fret (root on the 5th string): index finger pressing the whole row of strings from the front, thumb pushing from dead-center on the back of the neck — the “pinch” that a chord diagram can't show.

  • 💡 Don't rush for speed — get the barre to ring first, then practice moving it steadily between two positions.

Chords in this lesson

Tap the 🔊 under each diagram to match every chord's sound to its shape.

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⏱️ Cycle this lesson's chords to a beatPractice switching without stopping (one-minute changes) — first learn each chord by ear and shape, then drill clean changes between them.Expand

Switch back and forth between this lesson's chords to the beat below.

Tap “Start” to play along with the beat
FB
Speed80 BPM
Time

One bar of count-in first, then the chord changes automatically each bar. Get it smooth slowly, then speed up bit by bit.

Want to count how many changes you can do in 60 seconds? Head to the one-minute changes drill.

Go play these

Songs that fit this lesson's technique and chords — pick one and practice in the library:

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Practice checklist

  • Move the F shape to the 3rd fret to play G and the 5th fret to play A, checking string by string.
  • Fret the B chord (the A-shape barre at the 2nd fret).