Method: Interval::Pitch.random

Defined in:
lib/interval.rb

.random(normal = false) ⇒ Object

if normal=true then only return notes you would “normally” see. what is the word for that, natural?



57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
 
# File 'lib/interval.rb', line 57

def random(normal=false)
  p = new
  p.notename_i = NOTE_NAMES_TO_I.values.rand
  p.octave = 0

  accidentals = []
  if normal
    accidentals = case p.notename
                  when 'c', 'f' 
                    [0, 1]
                  when 'e', 'b'
                    [-1, 0]
                  else [-1, 0, 1]
                  end
  else
    accidentals = [-1, 0, 1]
  end
  p.accidental = accidentals.rand
  p
end