Parametric key-structure chart

Generated from octave ratio 2:1, fifth ratio 3:2, and the major-step pattern 2-2-1-2-2-2-1. Style intensity scales from those ratios instead of fixed design constants.

Cell size

Major column emphasis

1-3-5 emphasis

Accidentals in major columns

Major degree columnscomma separated

Triad columnscomma separated

Bracket spanseditable in code

Sharps / flatscurrent view

major-scale landing columns

editable 1/3/5 emphasis

accidentals inside major columns

circle-of-fifths accidental band (6-13)

triad tones circled