fifths_to_note

fifths_to_note(unison, fifths, unicode?): string

Defined in: packages/pleco-xa/src/scripts/xa-notation.js:920

Calculate the note name for a given number of perfect fifths

Starting from a given unison note, computes the note name that is fifths perfect fifths away.

Parameters

unison

string

The starting note (e.g., ‘C’)

fifths

number

Number of fifths (positive for up, negative for down)

unicode?

boolean = true

Use unicode symbols (default: true)

Returns

string

The resulting note name

Example

fifths_to_note('C', 1)        // 'G'   (up one fifth)
fifths_to_note('C', -1)       // 'F'   (down one fifth)
fifths_to_note('C', 7, false) // 'C#'  (7 fifths = one sharp on the tonic letter)
fifths_to_note('B', 1, false) // 'F#'  (crossing the B→F♯ boundary adds the sharp)
fifths_to_note('G', -3, false)// 'Bb'  (docstring golden)