def METHOD_NAME(self):
    # dissonance (roughness) only applies to tones close enough:
    cFreq = 261.63
    cisFreq = 277.18
    cisFreq1 = cisFreq*2 # 1 octave above
    semitoneFreqs = [cFreq, cisFreq] # C-C#
    semitoneFreqs1 = [cFreq, cisFreq1] # C-C1#
    spec = [1, 1]
    result1 = Dissonance()(semitoneFreqs, spec)
    result2 = Dissonance()(semitoneFreqs1, spec)
    self.assertEqual(result2, 0)
    self.assertTrue(result1 > result2)