Class: Fretboard::Notes

Inherits:
Object
  • Object
show all
Defined in:
lib/fretboard/notes.rb

Constant Summary collapse

BASIC_NOTES =

Fretboard::Notes.all(:both) Fretboard::Notes.all(:sharp) Fretboard::Notes.all(:flat)

{
  1 => "C",
  2 => %w[C# Db],
  3 => "D",
  4 => %w[D# Eb],
  5 => "E",
  6 => "F",
  7 => %w[F# Gb],
  8 => "G",
  9 => %w[G# Ab],
  10 => "A",
  11 => %w[A# Bb],
  12 => "B"
}.freeze

Class Method Summary collapse

Class Method Details

.all(sharp_or_flat = :sharp) ⇒ Object

rubocop:disable Metrics/MethodLength



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# File 'lib/fretboard/notes.rb', line 24

def self.all(sharp_or_flat = :sharp) # rubocop:disable Metrics/MethodLength
  BASIC_NOTES.map do |_key, value|
    result = value

    if value.is_a?(Array)
      result = case sharp_or_flat
               when :both
                 value.join("/")
               when :sharp
                 value.first
               else
                 value.last
               end
    end

    result
  end
end

.first ⇒ Object 



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# File 'lib/fretboard/notes.rb', line 43

def self.first
  all.first
end