Chord Change Trainer
Every article on this subject gives the same advice. Repeat the change a hundred times, keep your fingers close to the strings, build muscle memory, be patient. None of it is wrong. It’s just aimed at your hands, and your hands aren’t the problem.
Changes are slow because you’re seeing two unrelated pictures and rebuilding the second one from scratch every time. There’s almost always a finger that barely moves between the two chords, and until you find it you’re doing far more work than the change needs. This tool gives you the number that tells you whether you’ve found it — pick two chords, run the clock, count every change you land cleanly, and watch what the number does over a week.
It’s free, nothing to install, and it works on your phone right next to the guitar.
How to use it
Pick two chords, set the clock to a minute, and count a change only if the chord rings. If a string is choked or buzzing, that wasn’t a change — it was a shape you arrived at late. This matters more than the score, because the quickest way to a big number is to stop caring what it sounds like, and then you’ve spent a month getting good at something useless. One strum per change, no pattern, nothing to think about in the right hand. Three or four pairs a session is plenty; two minutes of this is a diagnostic, not a workout.
Find the finger that doesn’t move
Before you drill a pair, put both chords down slowly and look for fingers that stay where they are, shift across by one string, or slide along the same string. Those are the ones doing the work.
- Em to Am — one finger changes. The other two shift across by a string, holding their shape.
- C to Am — lift one finger. That’s the entire change.
- G to Cadd9 — two fingers never leave the strings, which is why so many songs use Cadd9 instead of a plain C.
- E to D — your first finger slides up the third string. It doesn’t need to come off at all.
- Am to F — the same shape moved across and squashed. It only feels unrelated because of the barre.
Once you’ve found the anchor, drill the pair with a rule: that finger isn’t allowed to leave the string. It feels awkward for about a minute, then it feels like cheating. If a pair still won’t move, stop drilling it whole — fret the first chord, move one finger to where it goes in the second, put it back, then two. Build the change out of pieces you can already do instead of attacking it and hoping.
What the numbers mean
Most players land somewhere in the twenties in their first week and roughly double that inside a month, but comparing yourself to that is a waste of time. The only comparison worth making is you against you on the same pair last week. What you’re watching for is the shape of the line. A number climbing steadily means the mechanics are right and repetition is doing its job. A number flat for a fortnight means something in the movement is wrong, and more repetitions will only make it permanent. That’s the signal, and it’s the reason to count at all.
Who it’s for
Players in their first year who can fret the open chords but lose the beat every time they have to switch between them. Anyone who’s been told to practise chord changes and never been told what to look at while they do it. Returning players whose hands remember the shapes but not the transitions.
Everything on the site that runs in your browser — fretboard diagrams you can print, chords and scales built from their formulas, triads mapped across the neck. All free, nothing to install.
The anchor finger is the small version of a much bigger idea: a chord isn’t a picture, it’s three notes you can name. Before the Boxes starts there — the notes on the neck, the distances between them, and the three notes inside every chord you already play, so you stop memorising shapes before the habit sets in. Chapter one is on the site in full, free to read.
Read chapter one →