Class: Juicy::ChordProgression

Inherits:
Object
  • Object
show all
Defined in:
lib/juicy/chord_progression.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(key, mode, numerals = [1,4,1,5]) ⇒ ChordProgression

Returns a new instance of ChordProgression.



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# File 'lib/juicy/chord_progression.rb', line 7

def initialize(key, mode, numerals = [1,4,1,5])

  @numerals = numerals
  
  #given a key and a mode, a number can tell me what chord.
  
  @chords = [
    Chord.new(root: "A", quality: :major),
    Chord.new(root: "D", quality: :major),
    Chord.new(root: "A", quality: :major),
    Chord.new(root: "E", quality: :major)
  ]
 #@numerals.each do |numeral|
 #  @chords << Chord.new(numeral)
 #end
  
end

Instance Attribute Details

#chords ⇒ Object

Returns the value of attribute chords.



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# File 'lib/juicy/chord_progression.rb', line 5

def chords
  @chords
end

Instance Method Details

#initial_play_time ⇒ Object 



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# File 'lib/juicy/chord_progression.rb', line 46

def initial_play_time
  0
end

#inspect ⇒ Object 



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# File 'lib/juicy/chord_progression.rb', line 25

def inspect
  output = ""
  @chords.each do |chord|
    output += chord.inspect + ", "
  end
  output[0..-3]
end

#play ⇒ Object 



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# File 'lib/juicy/chord_progression.rb', line 50

def play
  @chords.each do |chord|
    4.times {chord.play}
  end
end

#to_a ⇒ Object 



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# File 'lib/juicy/chord_progression.rb', line 41

def to_a
  [Chord.new(root: "C")]
  @chords
end

#to_s ⇒ Object 



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# File 'lib/juicy/chord_progression.rb', line 33

def to_s
  output = ""
  @progression.each do |scale_degree|
    output += scale_degree.to_s + ", "
  end
  output[0..-3]
end