def testSub(self):
tmp = self.s2
tmp -= Interval(-6, 'minor')
self.assertTrue(tmp.eqNames(Sound('f')))
self.assertTrue((tmp - Interval(-2, 'minor')).eqNames(Sound('g', -2)))
self.assertTrue((tmp - Interval(-5, 'aug')).eqNames(Sound('c', 2)))
self.assertTrue((tmp - Interval(10)).eqNames(Sound('d', -2)))
self.assertTrue((tmp - Interval(2)).eqNames(Sound('e', -2)))
def testAdd(self):
tmp = self.s2
tmp += Interval(3)
self.assertTrue(tmp.eqNames(Sound('c', 2)))
self.assertTrue((tmp + Interval(2, 'minor')).eqNames(Sound('d')))
self.assertTrue((tmp + Interval(4)).eqNames(Sound('f', 2)))
self.assertTrue((tmp + Interval(-5, 'aug')).eqNames(Sound('f', 0)))
self.assertTrue((tmp + Interval(-2)).eqNames(Sound('b', 0)))
def setUp(self):
self.s1 = Sound()
self.s2 = Sound('a', 0)
self.s3 = Sound('c', -3)
self.s4 = Sound('b', 4)
self.s5 = Sound('a', 0)
self.s6 = Sound('c', 1)
self.s7 = Sound('c', 2)
def fromSoundAndOctave(sound=None, octave=None):
"""Static factory to product pitch from Sound and Octave.
Args:
sound (Sound): sound of pitch (default: Sound())
octave (Octave): octave for pitch (default: Octave())
"""
if sound is None:
sound = Sound()
if octave is None:
octave = Octave()
return Pitch(sound.name, sound.alteration, octave.lines, octave.size)
def __init__(self, name=None, alteration=None,
octaveLines=None, octaveSize=None):
"""Creates instance of Pitch by name, alteration and octave parameters
Args:
name (str): name of pitch; should be one-letter string from
the pitchNames list (default: 'a')
alteration (int): alteration of pitch; should be integer value
from -4 to 4 range (default: 0)
octaveLines (int): lines of pitch's octave (default: 1)
octaveSize (str): case of letter in music notation of pitch's
octave; should be only from set of opeNotes.octave.octaveSizes
list - 'upper' or 'lower' (default: 'lower')
"""
if name is None:
name = 'a'
if alteration is None:
alteration = 0
if octaveLines is None:
octaveLines = 1
if octaveSize is None:
octaveSize = 'lower'
self.sound = Sound(name, alteration)
self.octave = Octave(octaveLines, octaveSize)
