def testEFlatMajor(self):
sig = key_signature.KeySignature(clef.TrebleClef())
self.assertTrue(sig.try_put(0, musicscore_pb2.Glyph.FLAT)) # Bb
self.assertTrue(sig.try_put(+3, musicscore_pb2.Glyph.FLAT)) # Eb
self.assertTrue(sig.try_put(-1, musicscore_pb2.Glyph.FLAT)) # Ab
self.assertEqual(sig.get_next_accidental(),
(+2, musicscore_pb2.Glyph.FLAT)) # Db
def testBMajor(self):
sig = key_signature.KeySignature(clef.TrebleClef())
self.assertTrue(sig.try_put(+4, musicscore_pb2.Glyph.SHARP)) # F#
self.assertTrue(sig.try_put(+1, musicscore_pb2.Glyph.SHARP)) # C#
self.assertTrue(sig.try_put(+5, musicscore_pb2.Glyph.SHARP)) # G#
self.assertEqual(sig.get_next_accidental(),
(+2, musicscore_pb2.Glyph.SHARP)) # D#
def testCFlatMajor_noMoreAccidentals(self):
sig = key_signature.KeySignature(clef.TrebleClef())
self.assertTrue(sig.try_put(0, musicscore_pb2.Glyph.FLAT)) # Bb
self.assertNotEqual(sig.get_next_accidental(), (None, None))
self.assertTrue(sig.try_put(+3, musicscore_pb2.Glyph.FLAT)) # Eb
self.assertNotEqual(sig.get_next_accidental(), (None, None))
self.assertTrue(sig.try_put(-1, musicscore_pb2.Glyph.FLAT)) # Ab
self.assertNotEqual(sig.get_next_accidental(), (None, None))
self.assertTrue(sig.try_put(+2, musicscore_pb2.Glyph.FLAT)) # Db
self.assertNotEqual(sig.get_next_accidental(), (None, None))
self.assertTrue(sig.try_put(-2, musicscore_pb2.Glyph.FLAT)) # Gb
self.assertNotEqual(sig.get_next_accidental(), (None, None))
self.assertTrue(sig.try_put(+1, musicscore_pb2.Glyph.FLAT)) # Cb
self.assertNotEqual(sig.get_next_accidental(), (None, None))
self.assertTrue(sig.try_put(-3, musicscore_pb2.Glyph.FLAT)) # Fb
# Already at Cb major, no more accidentals to add.
self.assertEqual(sig.get_next_accidental(), (None, None))
def testTrebleClef(self):
self.assertEqual(clef.TrebleClef().y_position_to_midi(-8),
librosa.note_to_midi('A3'))
self.assertEqual(clef.TrebleClef().y_position_to_midi(-6),
librosa.note_to_midi('C4'))
self.assertEqual(clef.TrebleClef().y_position_to_midi(0),
librosa.note_to_midi('B4'))
self.assertEqual(clef.TrebleClef().y_position_to_midi(1),
librosa.note_to_midi('C5'))
self.assertEqual(clef.TrebleClef().y_position_to_midi(3),
librosa.note_to_midi('E5'))
self.assertEqual(clef.TrebleClef().y_position_to_midi(4),
librosa.note_to_midi('F5'))
self.assertEqual(clef.TrebleClef().y_position_to_midi(14),
librosa.note_to_midi('B6'))
def _read_clef(self, staff_state, glyph):
"""Reads a clef glyph.
If the clef is at the expected y position, set the current clef.
Args:
staff_state: The state of the staff that the glyph is on.
glyph: A glyph of type CLEF_TREBLE or CLEF_BASS.
Raises:
ValueError: If glyph is an unexpected type.
"""
if glyph.type == musicscore_pb2.Glyph.CLEF_TREBLE:
if glyph.y_position == TREBLE_CLEF_EXPECTED_Y:
staff_state.set_clef(clef.TrebleClef())
elif glyph.type == musicscore_pb2.Glyph.CLEF_BASS:
if glyph.y_position == BASS_CLEF_EXPECTED_Y:
staff_state.set_clef(clef.BassClef())
else:
raise ValueError('Unknown clef of type: ' +
musicscore_pb2.Glyph.Type.Name(glyph.type))
def __init__(self, start_time, clef=None):
clef = clef or clef_module.TrebleClef()
self.measure_state = measure.MeasureState(start_time, clef=clef)
def testEmpty_noNextAccidental(self):
self.assertEqual(
key_signature.KeySignature(
clef.TrebleClef()).get_next_accidental(), (None, None))