def test_modifiers(self):
from sebastian.core.notes import modifiers
assert modifiers(0) == 0
assert modifiers(2) == 0
assert modifiers(-1) == 0
assert modifiers(-5) == -1
assert modifiers(-11) == -2
assert modifiers(-17) == -2
assert modifiers(4) == 1
assert modifiers(13) == 2
assert modifiers(17) == 2
def test_modifiers(self):
from sebastian.core.notes import modifiers
assert modifiers(0) == 0
assert modifiers(2) == 0
assert modifiers(-1) == 0
assert modifiers(-5) == -1
assert modifiers(-11) == -2
assert modifiers(-17) == -2
assert modifiers(4) == 1
assert modifiers(13) == 2
assert modifiers(17) == 2
def lilypond(point):
"""
Generate lilypond representation for a point
"""
#If lilypond already computed, leave as is
if "lilypond" in point:
return point
#Defaults:
pitch_string = ""
octave_string = ""
duration_string = ""
preamble = ""
dynamic_string = ""
if "pitch" in point:
octave = point["octave"]
pitch = point["pitch"]
if octave > 4:
octave_string = "'" * (octave - 4)
elif octave < 4:
octave_string = "," * (4 - octave)
else:
octave_string = ""
m = modifiers(pitch)
if m > 0:
modifier_string = "is" * m
elif m < 0:
modifier_string = "es" * -m
else:
modifier_string = ""
pitch_string = letter(pitch).lower() + modifier_string
if DURATION_64 in point:
duration = point[DURATION_64]
if duration > 0:
if duration % 3 == 0: # dotted note
duration_string = str(192 // (2 * duration)) + "."
else:
duration_string = str(64 // duration)
#TODO: for now, if we have a duration but no pitch, show a 'c' with an x note
if duration_string:
if not pitch_string:
pitch_string = "c"
octave_string = "'"
preamble = r'\xNote '
if "dynamic" in point:
dynamic = point["dynamic"]
if dynamic == "crescendo":
dynamic_string = "\<"
elif dynamic == "diminuendo":
dynamic_string = "\>"
else:
dynamic_string = "\%s" % (dynamic, )
point["lilypond"] = "%s%s%s%s%s" % (preamble, pitch_string, octave_string,
duration_string, dynamic_string)
return point
def midi_pitch(point):
octave = point["octave"]
pitch = point["pitch"]
midi_pitch = [2, 9, 4, 11, 5, 0, 7][pitch % 7]
midi_pitch += modifiers(pitch)
midi_pitch += 12 * octave
point[MIDI_PITCH] = midi_pitch
return point
def midi_pitch(point):
octave = point["octave"]
pitch = point["pitch"]
midi_pitch = [2, 9, 4, 11, 5, 0, 7][pitch % 7]
midi_pitch += modifiers(pitch)
midi_pitch += 12 * octave
point[MIDI_PITCH] = midi_pitch
return point
def lilypond(point):
"""
Generate lilypond representation for a point
"""
#If lilypond already computed, leave as is
if "lilypond" in point:
return point
#Defaults:
pitch_string = ""
octave_string = ""
duration_string = ""
preamble = ""
dynamic_string = ""
if "pitch" in point:
octave = point["octave"]
pitch = point["pitch"]
if octave > 4:
octave_string = "'" * (octave - 4)
elif octave < 4:
octave_string = "," * (4 - octave)
else:
octave_string = ""
m = modifiers(pitch)
if m > 0:
modifier_string = "is" * m
elif m < 0:
modifier_string = "es" * m
else:
modifier_string = ""
pitch_string = letter(pitch).lower() + modifier_string
if DURATION_64 in point:
duration = point[DURATION_64]
if duration > 0:
if duration % 3 == 0: # dotted note
duration_string = str(192 // (2 * duration)) + "."
else:
duration_string = str(64 // duration)
#TODO: for now, if we have a duration but no pitch, show a 'c' with an x note
if duration_string:
if not pitch_string:
pitch_string = "c"
octave_string = "'"
preamble = r'\xNote '
if "dynamic" in point:
dynamic = point["dynamic"]
if dynamic == "crescendo":
dynamic_string = "\<"
elif dynamic == "diminuendo":
dynamic_string = "\>"
else:
dynamic_string = "\%s" % (dynamic,)
point["lilypond"] = "%s%s%s%s%s" % (preamble, pitch_string, octave_string, duration_string, dynamic_string)
return point
def _(point):
octave = point["octave"]
pitch = point["pitch"]
duration = point[DURATION_64]
if octave > 4:
octave_string = "'" * (octave - 4)
elif octave < 4:
octave_string = "," * (4 - octave)
else:
octave_string = ""
m = modifiers(pitch)
if m > 0:
modifier_string = "is" * m
elif m < 0:
modifier_string = "es" * m
else:
modifier_string = ""
pitch_string = letter(pitch).lower() + modifier_string
duration_string = str(64 / duration) # @@@ doesn't handle dotted notes yet
point["lilypond"] = "%s%s%s" % (pitch_string, octave_string, duration_string)
return point