notecoord

Describes the relative intervals between two notes

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notecoord
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notecoord
A data package containing the relative intervals bewteen notes in the Western muscic system. The coordinates are in the format of an array. [octaves, fifths] relative to C.
Thus c's coord is [0, 0], while d's is [-1, 2] because going to the note d in the same octave as c requires going one octave down and two fifths up.
var coords = require('notecoord');

// Get the coord of a note name (relative to C)
coords('a') // -> [-1, 3]

// Get the coord of note A4 (relative to C0)
coords.A4 // -> [3, 3]

// Access all the notes
coords.notes /* -> {
  c: [0, 0],
  d: [-1, 2],
  e: [-2, 4],
  f: [1, -1],
  g: [0, 1],
  a: [-1, 3],
  b: [-2, 5],
  h: [-2, 5]
} */

Above is everything this module does.