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Chord Families

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khodowany
2026-10-06 02:57:37 -05:00
parent df83cae38c
commit e71385dad1
16 changed files with 590 additions and 126 deletions
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tests/test_voicing.py
+2 -2
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@@ -36,11 +36,11 @@ class VoicingTests(unittest.TestCase):
for symbol, melody, expected in (('FM7', 69, (3, 5, 5, 5)), ('Gm7', 67, (3, 3, 3, 3))):
with self.subTest(symbol=symbol):
self.assertEqual(ranked(symbol, (melody,))[0], grip(expected))
def test_four_strings_precede_melody_height_and_root_presence(self):
def test_melody_height_precedes_four_strings_and_optional_root(self):
candidates = ranked('C#M7', (65,))
four = next(c for c in candidates if len(c) == 4 and max(p.midi for p in c) > 65)
three = next(c for c in candidates if len(c) == 3 and max(p.midi for p in c) == 65)
self.assertLess(candidates.index(four), candidates.index(three))
self.assertLess(candidates.index(three), candidates.index(four))
candidates = ranked('FM7', (69,))
rootless = next(c for c in candidates if len(c) == 4 and 5 not in {p.midi % 12 for p in c})
rooted = next(c for c in candidates if len(c) == 3 and 5 in {p.midi % 12 for p in c})