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Decage™ · The Whole-Fretboard Mapper

The whole
fretboard just
got released
from its cage

Decage is a visual map of the CAGED system — the 5 shapes you already know, repositioned to find every chord, everywhere on the neck. Built for artistic, non-linear, and creative brains that learn laterally — by seeing, not memorising.

See it work →
↓ scroll
How's Decage different
Learn at your pace

No deadlines, no homework, no rigid lesson order. Open the fretboard for 5 minutes or 50 — skip a week, come back after months. The tool waits.

Study without a teacher

No lessons to book, no schedule to keep. The fretboard becomes self-explanatory — pick a chord, see where it lives, move on. No one explaining for an hour.

Built for non-linear brains

No walls of text. No 50-video courses. Just visual patterns your brain can actually hold onto — because memorisation is the enemy of progress.

Own the whole neck

The CAGED system maps every major and minor chord across all 12 frets. Stop being stuck at open position — see every chord, everywhere, instantly.

Interactive, not passive

Click. Explore. Play. Decage is a live tool you use alongside your guitar — not a course you watch and forget.

Post-beginner gap, closed

You know open chords. Now what? Decage is built specifically for that frustrating middle stage — where most people quit.

See it work
What you're seeing — one chord travels the whole neck: the same shape slides up the fretboard through all five CAGED positions, lighting up every place that chord can be played.
The origin story

Hotel California.
5 days.
Zero prior method.

After hitting a wall with traditional methods, Mariam built Decage for her own artistic, non-linear, lateral-learning brain. Then it worked.

3 sec to find any chord, anywhere
positions for every chord
12 frets — no more open-chord ceiling
What players are saying

It's easy to use, and I love that it's big — when I'm playing on my iPad, it doesn't hurt my eyes. As an ADHD player needing a quick check while strumming, that's huge. Strum, glance, strum — so satisfying.

— Anoud

It doesn't scare me anymore to play along with another guitarist…

— Yumi

The instructions are spot on: the root note, the muted strings, the open positions — all marked clearly. The colors are mindfully pleasing; they help me grasp the chord fast and play it.

I tried the chords on my guitar — it was easy to see and just play. It's really beautiful.

— Ice

This is the tool I have been looking for. It unlocked the whole fretboard for me. From this place, I knew exactly where to put my effort next.

— Mariam
One price. Lifetime access.
One-time
Full Access — Forever
$99
$99
Launch price · limited time
pay once · use forever
Get Lifetime Access — $99
or start with Lite — frets 0–5 for $20 →
Common questions
What is Decage?

A visual, interactive fretboard tool built around the CAGED system — the 5 chord shapes (C·A·G·E·D) that cover every major and minor chord across the whole neck. Not a video course, not a 50-lesson series, not an ebook. One web app you use alongside your guitar to see where chords actually live.

What does the preview video show?

One chord traveling the whole neck. The same shape slides up the fretboard through all five CAGED positions, lighting up every place that chord can be played — so you see, at a glance, how a single chord lives in many spots across the neck instead of just one.

What level is this for?

After beginner. When you're stuck in that curve trying to reach intermediate but have no clue where to step next — you know open chords, you can play a few songs, but the rest of the neck feels like a mystery. That's the gap Decage closes.

How does it work?

Pick a CAGED shape. Pick major or minor. The fretboard lights up with every place that chord can be played across all 12 frets. Click around, compare shapes, see the patterns emerge.

You're not memorising — you're recognising. Built for brains that learn visually instead of through repetition.

What styles is this useful for?

Anything chord-driven: rock, blues, country, folk, pop, jazz comping, songwriting. If you're navigating chords on a fretboard, Decage helps you find them. It's neutral on style — it shows you the neck, your music lives on top of it.

What Decage isn't

It's not a substitute for practice, theory study, or ear training. It won't teach you rhythm, picking technique, or how a chord progression feels. It's a visual reference you keep open while you play — the part of a teacher that points at the neck and says "look, the same chord lives here, here, and here."

What are the system requirements?

Any modern browser on phone, tablet, or desktop. iPhone, iPad, Android, Mac, Windows, Linux — all work. No download, no installation, no app store. Open guita.rocks and you're in.

Does Decage play any sounds?

No. Decage is a visual tool — your guitar makes the sound. Open the fretboard, play along on your own instrument, look at the patterns light up. The silence is intentional: you focus on what your hands are doing, not on app audio.

How do I access Decage after I pay?

Instantly. The moment Stripe confirms payment, you get an email with your access link. Bookmark it, open it on any device, and you're in — lifetime access, no subscription, no expiring login, no version that disappears six months from now.

I'm stuck after open chords — is this for me?

Exactly for you. That's the post-beginner gap Decage was built to close — you know open chords and a few songs, but the rest of the neck feels random. More on the post-beginner gap →

I learn visually, not from courses or theory books — will this work?

Yes — it's built for artistic, non-linear, lateral-learning brains. You see the patterns instead of memorising or reading theory. Why seeing beats memorizing →

Is there really nothing else like this?

Plenty of courses, apps, and chord finders exist — but none is an interactive, hands-on map of the full CAGED system across the neck. That precise thing is what Decage is. See the honest comparison →

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