Everything on the neck,
explained by hand.
Interactive tools and plain-language lessons for guitarists who want to understand what they're playing. No paywalls, no accounts required.
Every tool generates its content from music theory and math, so what you see is always correct and always original.
Fretboard Explorer
See the five CAGED shapes tile the neck in any key, with chord-tone and scale overlays.
Chord Library
Any chord, nine flavors, five positions up the neck, with every note and interval labeled.
Circle of Fifths
Interactive wheel: key signatures, the seven chords of every key, and classic progressions.
Key Bridge
Build a progression that changes key: pivot chords, dominant routes, and a hands-on builder.
Capo Calculator
Pick the key a song sounds in; get every capo position and shape family that plays it, with full chord translations.
Tuner
Mic-based tuner with a cents gauge for guitar, bass, banjo, and ukulele: many tunings, strings and chromatic modes, adjustable reference pitch.
Nashville Number Trainer
Build charts in numbers, see them wear chords in two keys at once, then drill both directions in quiz mode.
Ear Trainer
Three drills with synthesized audio: intervals, chord colors, and progression recognition, each in three levels.
Metronome & Speed Builder
Sample-accurate metronome plus a tempo ladder: climb a few bpm per clean pass, manually or on autopilot.
Progression Player
A looping synthesized backing band: any progression in all 24 major and minor keys, four feels, drums optional.
Every lesson is written around a tool and links straight to it.
Getting Started
Where are you stuck? A roadmap into the rest of the site.
The Fretboard & CAGED
How five shapes map the entire neck.
Chords
Open chords, barre chords, and the voicing families.
Theory & Nashville Numbers
Keys, intervals, diatonic chords, number notation.
Ear Training
Hearing intervals, qualities, and progressions.
Technique & Speed
Practice structure and tempo laddering.