John "Longitude" Harrison (1693-1776) - (portrait)
Concepts
The Link between Frequency (sound) and Wavelength (light)
Tuning and Harmonic Theory
Colour, notes, spiral, and clockface diagrams LucyTuned coloured piano keyboard layout Comparison of LucyTuning and Just Intonation with integer frequency ratio mapping
Scales
Table of more than 60 scales Diagram of harmonic colours and pitches Diagrams of LucyTuned fretboards Erv. Wilson's 31 notes per octave tubalong layout Erv. Wilson's hexagon marimba/keyboard layout
