Major limma
Major limma is an interval with the ratio of 135:128, which is the difference between two major tones and a minor third. It is equal to about 92.18 cents.
Composer Ben Johnston uses a "−" with a "" as an accidental to indicate a note is lowered 92 cents, or a "+" with a "" to indicate a note is raised 92 cents, the value of the syntonic comma and the just chromatic semitone.
