A flowing curriculum

Learn theory
through sound.

Six connected ideas. No gatekeeping, no memorisation race — just listen, see and play.

01

The raw material

Sound & Notes

A note is a vibration repeating at a steady frequency. Double that frequency and you hear the same note one octave higher.

C4261.6 Hz
02

Harmony begins

The Major Scale

Western melody often begins with seven notes arranged in a precise pattern of whole and half steps: W–W–H–W–W–W–H.

WWHWWWH
CDEFGABC
03

Space between notes

Intervals

An interval measures the distance from one note to another. Small changes in distance create entirely different emotional colours.

Perfect 5th
04

Notes in company

Chords & Triads

Stack a root, a third and a fifth. The middle note decides whether a triad feels bright, dark or unresolved.

C major

Move the third. Change the feeling.

05

Shape in time

Rhythm & Time

Rhythm groups sound into a pulse you can predict. A time signature tells us how those beats gather into bars.

4/4 time
06

The musical map

Keys & The Circle

The circle of fifths places nearby keys next to one another, revealing shared notes, relatives and natural chord movement.

CGDAEBF♯D♭A♭E♭B♭FFIFTHS
Explore full circle →

You now know more theory
than most guitarists.

Go play with it.

Open the playground →