def prime_form(notes):
set_zero = transposition_startswith(normal_form(notes), 0)
set_inv = transposition_startswith(normal_form(inversion(set_zero)), 0)
if interval_tie(set_zero) <= interval_tie(set_inv):
return set_zero
else:
return set_inv
def prime_form(notes):
set_zero = transposition_startswith(normal_form(notes), 0)
set_inv = transposition_startswith(normal_form(inversion(set_zero)), 0)
if interval_tie(set_zero) <= interval_tie(set_inv):
return set_zero
else:
return set_inv
def test_inversion(self):
n1 = [0, 4, 7]
n2 = [0, 8, 5]
n3 = music.inversion(n1, 0)
self.assertEqual(n3, n2)
self.assertEqual(music.inversion(n3), n1)
def test_inversion(self):
n1 = [0, 4, 7]
n2 = [0, 8, 5]
n3 = music.inversion(n1, 0)
self.assertEqual(n3, n2)
self.assertEqual(music.inversion(n3), n1)
#!/usr/bin/env python
from pyknon.plot import plot2
from pyknon.simplemusic import inversion
n1 = [11, 10, 7]
for x in range(12):
plot2(n1, inversion(n1, x), "ex-inversion-plot-{0:02}.ps".format(x))
n2 = [1, 3, 7, 9, 4]
plot2(n2, inversion(n2, 9), "ex-inversion-plot.ps")