class RBMusic::Scale

Attributes

degrees[R]

key[R]

Public Class Methods

new(key, name) click to toggle source

# File lib/rb-music/scale.rb, line 7
def initialize(key, name)
  scale_name = name.to_sym
  raise ArgumentError unless NOTES.has_key?(key)
  raise ArgumentError unless SCALES.has_key?(scale_name)
  @key = key
  @degrees = [:unison] + SCALES[scale_name]
end

Public Instance Methods

degree_count() click to toggle source

# File lib/rb-music/scale.rb, line 15
def degree_count
  @degree_count ||= @degrees.size
end

notes_in_range(start_note, end_note) click to toggle source

# File lib/rb-music/scale.rb, line 19
def notes_in_range(start_note, end_note)
  raise ArgumentError unless start_note.is_a?(Note) && end_note.is_a?(Note)

  NoteSet.new()
end