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Music, art & photography · course 88 of 105

The Whole Guitar Fretboard

Stop guessing on guitar: find any note on any string, know what each open chord really plays, and work out where the capo goes for any key.

4 modules

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What it teaches

The guitar theory you need to stop guessing: standard tuning, finding any note on any string by counting frets, what each open chord shape actually plays (and why Em and E differ by one note), and capo maths (which chord a shape sounds with the capo on fret 3, and where the capo goes for a key). The AI asks 3 questions, places you, shows a short card per module, then gives you one question at a time and checks you against keys computed by script.

The tutor can’t hear you play. It teaches the notes and shapes, not technique.

How long

32 items. About 20-50 rounds plus a 12-item final (in a test run, a simulated beginner took 50 rounds and a simulated strong player 17): 1-2 sessions (estimate, not timed with a real student). The tutor gives a one-line save code at the end of each session.

The modules

4 modules, drilled one item at a time.

  1. M0

    The words

    Concept questions

  2. M1

    Notes on the fretboard

    Note at a fret

  3. M2

    What open chord shapes play

    Spell the shape, name the chord

  4. M3

    The capo

    Capo maths

Before it teaches, it asks

  1. 1
    How long have you played, and what do you play now: open chords, barre chords, riffs, nothing yet?
    AI voice (ElevenLabs)
  2. 2
    Which note is at fret 5 on the low E string (string 6)?
  3. 3
    Shape x32010 (strings 6 to 1). Which notes sound, from low to high, and which chord is it?

What’s exact, and what isn’t

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Straight from the course’s own notes.

Computed by script
Every note, chord and capo answer by semitone arithmetic in standard tuning; every fretboard note checked a second way through absolute pitch numbers; every chord name is the only major/minor triad that fits its notes; all 8 open shapes in the bank checked to spell the chord they’re named for. A planted-error test (a mistuned string, a wrong capo answer, a wrong shape) was caught.
Sourced
Tuning, frets, capo, chord definitions and all 8 open shapes from Wikipedia and a second chord chart (miketyka.com), short quotes matched word for word on 2026-10-10.
Not in it yet
Barre chords, CAGED, scales, alternate tunings, seventh chords.