Module: Chords::ChordFactory

Extended by:

ChordFactory

Included in:

ChordFactory

Defined in:

lib/chords/chord_factory.rb

Constant Summary

CHORDS =

{:major  => [4,7],
:minor  => [3,7],
:five   => [7],
:sus2   => [2, 7],
:sus4   => [5, 7],
:aug    => [4, 8],
:dim    => [3, 6],
:minus5 => [4, 6]}

Instance Method Summary

• #new_chord(root, key) ⇒ Object

Instance Method Details

#new_chord(root, key) ⇒ Object

# File 'lib/chords/chord_factory.rb', line 15

def new_chord(root, key)
  raise "No chord with key #{key}" unless CHORDS.has_key?(key)
  notes = [root]
  notes += CHORDS[key].map{|interval| root + interval}
  Chord.new([key.to_s], notes)
end