Layer 1Science Foundation
01
The Overtone Series
Where music actually comes from. Physics, not tradition.
Begin Lesson →Fourier & Sound
Every tone is a sum of sine waves. Why a guitar sounds like a guitar.
Geometry in Motion
Intervals are ratios. The torus describes how octaves repeat forever.
Eastern vs. Western
Other cultures built different scales from the same physics.
Why 12 Notes?
Equal temperament. Every fret = the 12th root of 2.
Layer 2Chromatic Scale
The Chromatic Scale
12 notes. All the raw material. Before any key.
The 1–7 Framework
Every interval named by distance from root. The universal language.
Symmetrical Scales
Diminished, augmented, whole tone — perfectly even divisions.
Triads · Scales · Mastery · Coming Next