def __init__(self,
gateway,
settings,
behaviour,
scale="DIATONIC"):
self.settings = settings
self.behaviour = behaviour
self.gateway = gateway
self.registers = registers
self.offered_scales = SCALES_BY_FREQUENCY
self.offered_meters = METERS
self.scale = scale
self.num_voices = settings['number_of_voices']
self.comp_logger = logging.getLogger("composer")
self.note_logger = logging.getLogger("transcriber")
self.musical_logger = logging.getLogger("musical")
# change INFO to DEBUG for debugging output
self.musical_logger.setLevel(logging.INFO)
self.meter = self.behaviour['meter']
self.applied_meter = METERS[self.meter]['applied']
self._update_groupings(self.meter)
self.use_meter = True
self.drummer = Drummer(self)
self.comment = None
self.voices = {}
for voice_idx in range(1, 5):
self.gateway.mute_voice(voice_idx, 1)
for voice_idx in range(self.num_voices):
id_ = voice_idx + 1
self.gateway.mute_voice(id_, 0)
self.voices[id_] = Voice(
id_, self,
note_length_grouping=self.behaviour["meter"][1],
register=self.settings["voice_registers"][voice_idx],
behaviour=self.settings['voice_behaviours'][voice_idx])
self.gateway.pd.send(["voice", id_, "adsr_enable", int(bool(settings['enable_adsr']))])
[voice.register_other_voices() for voice in list(self.voices.values())]
self.set_meter(self.meter)
self.notate = settings.get('notate')
if self.notate:
self.notator = Notator(self.num_voices)
class AbstractComposer(object, metaclass=ABCMeta):
def __init__(self,
gateway,
settings,
behaviour,
scale="DIATONIC"):
self.settings = settings
self.behaviour = behaviour
self.gateway = gateway
self.registers = registers
self.offered_scales = SCALES_BY_FREQUENCY
self.offered_meters = METERS
self.scale = scale
self.num_voices = settings['number_of_voices']
self.comp_logger = logging.getLogger("composer")
self.note_logger = logging.getLogger("transcriber")
self.musical_logger = logging.getLogger("musical")
# change INFO to DEBUG for debugging output
self.musical_logger.setLevel(logging.INFO)
self.meter = self.behaviour['meter']
self.applied_meter = METERS[self.meter]['applied']
self._update_groupings(self.meter)
self.use_meter = True
self.drummer = Drummer(self)
self.comment = None
self.voices = {}
for voice_idx in range(1, 5):
self.gateway.mute_voice(voice_idx, 1)
for voice_idx in range(self.num_voices):
id_ = voice_idx + 1
self.gateway.mute_voice(id_, 0)
self.voices[id_] = Voice(
id_, self,
note_length_grouping=self.behaviour["meter"][1],
register=self.settings["voice_registers"][voice_idx],
behaviour=self.settings['voice_behaviours'][voice_idx])
self.gateway.pd.send(["voice", id_, "adsr_enable", int(bool(settings['enable_adsr']))])
[voice.register_other_voices() for voice in list(self.voices.values())]
self.set_meter(self.meter)
self.notate = settings.get('notate')
if self.notate:
self.notator = Notator(self.num_voices)
def __repr__(self):
return "<Composer-Inst ({}) with harmony: {}>".format(self.__class__, self.harm)
def _update_groupings(self, meter):
self.TERNARY_GROUPINGS = note_length_groupings.get_grouping(meter,
"terns")
self.HEAVY_GROUPINGS = note_length_groupings.get_grouping(meter,
"heavy")
self.DEFAULT_GROUPINGS = note_length_groupings.get_grouping(meter,
"default")
self.FAST_GROUPINGS = note_length_groupings.get_grouping(meter,
"first")
def report(self):
'''utility function that prints info on harmonies and single voices'''
sys.stderr.write("harmonies: {0}\n".format(self.harm))
sys.stderr.write("voices: {0}\nnotes:{1}\n".format(self.voices,
[x.note for x in list(self.voices.values())]))
def set_meter(self, meter):
'''modifies composer-attributes for the specified meter.
calls reload_register method of the voices and creates and
sets the new meter also for the drummer-instance'''
self.meter = meter
try:
self.applied_meter = self.offered_meters[meter]["applied"]
except KeyError:
self.comp_logger.error("no applied meter registered for: {}".format(meter))
self.applied_meter = note_length_groupings.analyze_grouping(meter[1])
self._update_groupings(meter)
for v in list(self.voices.values()):
v.set_note_length_groupings()
v.reload_register()
self.drummer.meter = self.applied_meter
self.drummer.create_pattern()
@abstractmethod
def generate(self):
pass
@abstractmethod
def choose_rhythm(self):
pass
def set_binaural_diffs(self, val=None, voice=None):
'''"de-tunes" the specified voice by the specified interval (in hertz)
if no values are given, random values (in the configurated range)
are set for each voice.
'''
if val and val != 'random':
if voice:
voice.binaural_diff = val
self.gateway.pd.send(["voice", "binaural", str(voice.id), val])
else:
self.gateway.pd.send(["voice", "binaural", -1, val])
for voice in list(self.voices.values()):
voice.binaural_diff = val
else:
if self.behaviour['common_binaural_diff']:
val = random.random() * self.behaviour.get("max_binaural_diff")
for voice in list(self.voices.values()):
if not self.behaviour.voice_get(voice.id, "automate_binaural_diffs"):
continue
new_val = val or random.random() * self.behaviour.voice_get(voice.id, "max_binaural_diff")
voice.binaural_diff = new_val
self.gateway.pd.send(["voice", "binaural", voice.id, new_val])
def set_scale(self, name, min=0, max=128):
'''sets the specified scale and generates a new real scale'''
self.scale = name
self.generate_real_scale(min, max)
@staticmethod
def assemble_real_scale(scale, min=0, max=128, tunings=None):
'''extends the one-octave scale over the specified range.
Tunings should be in (<index>, <delta>) format, e.g.
{1: -0.5 2: -1} would create the the start of a greek
enharmonic scale for an underlying scale of [1, 1, 1,.....'''
real_scale = []
value = 0
for n in range(min, max):
index = n % len(scale)
if scale[index]:
adjustment = 0 if not tunings else tunings.get(index, 0)
real_scale.append(value + adjustment)
value += 1
return real_scale
def generate_real_scale(self, min=0, max=128):
'''extends the one-octave scale over the specified range'''
scale = SCALES[self.scale]
tunings = None
if self.scale == 'GREEK_ENHARMONIC':
tunings = {1: -0.5, 2: -1, 8:-0.5, 9:-1}
elif self.scale == 'DAMONIAN_MIXOLYDIAN':
tunings = {1: -0.5, 2: -1, 6:-0.5, 7:-1} # (West - ancient greek music, p. 174)
elif self.scale == 'PTOLEMY_TROPOI':
tunings = {3: -0.3, 8: -0.2, 9: 0.3} # (West - ancient greek music, p. 171)
elif self.scale == 'PERSIAN_SEGAH':
tunings = {2: -0.5, 8: 0.25, 10: 0.13}
elif self.scale == 'PERSIAN_SHUR':
tunings = {3: 0.5, 8: -0.2, 10: -0.2}
self.real_scale = self.assemble_real_scale(scale, min, max, tunings=tunings)
class AbstractComposer(object):
__metaclass__ = ABCMeta
def __init__(self,
gateway,
settings,
behaviour,
scale="DIATONIC"):
self.settings = settings
self.behaviour = behaviour
self.gateway = gateway
self.registers = registers
self.offered_scales = SCALES_BY_FREQUENCY
self.offered_meters = METERS
self.scale = scale
self.num_voices = settings['number_of_voices']
self.comp_logger = logging.getLogger("composer")
self.note_logger = logging.getLogger("transcriber")
self.musical_logger = logging.getLogger("musical")
# change INFO to DEBUG for debugging output
self.musical_logger.setLevel(logging.INFO)
self.meter = self.behaviour['meter']
self.applied_meter = METERS[self.meter]['applied']
self._update_groupings(self.meter)
self.drummer = Drummer(self)
self.comment = None
self.voices = {}
for voice_idx in range(self.num_voices):
id_ = voice_idx + 1
self.voices[id_] = Voice(
id_, self,
note_length_grouping=self.behaviour["meter"][1],
register=self.settings["voice_registers"][voice_idx],
behaviour=self.settings['voice_behaviours'][voice_idx])
[voice.register_other_voices() for voice in self.voices.values()]
self.set_meter(self.meter)
self.notate = settings.get('notate')
if self.notate:
self.notator = Notator(self.num_voices)
def __repr__(self):
return "<Composer-Inst ({}) with harmony: {}>".format(self.__class__, self.harm)
def _update_groupings(self, meter):
self.TERNARY_GROUPINGS = note_length_groupings.get_grouping(meter,
"terns")
self.HEAVY_GROUPINGS = note_length_groupings.get_grouping(meter,
"heavy")
self.DEFAULT_GROUPINGS = note_length_groupings.get_grouping(meter,
"default")
self.FAST_GROUPINGS = note_length_groupings.get_grouping(meter,
"first")
def report(self):
'''utility function that prints info on harmonies and single voices'''
sys.stderr.write("harmonies: {0}\n".format(self.harm))
sys.stderr.write("voices: {0}\nnotes:{1}\n".format(self.voices,
map(lambda x: x.note, self.voices.values())))
def set_meter(self, meter):
'''modifies composer-attributes for the specified meter.
calls reload_register method of the voices and creates and
sets the new meter also for the drummer-instance'''
self.meter = meter
self.applied_meter = self.offered_meters[meter]["applied"]
self._update_groupings(meter)
for v in self.voices.values():
v.set_note_length_groupings()
v.reload_register()
self.drummer.meter = METERS[meter]["applied"]
self.drummer.create_pattern()
@abstractmethod
def generate(self):
pass
@abstractmethod
def choose_rhythm(self):
pass
def set_binaural_diffs(self, val=None, voice=None):
'''"de-tunes" the specified voice by the specified interval (in hertz)
if no values are given, random values (in the configurated range)
are set for each voice.
'''
if val and val != 'random':
if voice:
voice.binaural_diff = val
self.gateway.pd.send(["voice", "binaural", str(voice.id), val])
else:
self.gateway.pd.send(["voice", "binaural", -1, val])
for v in self.voices.values():
v.binaural_diff = val
else:
if self.behaviour['common_binaural_diff']:
val = random.random() * self.behaviour.get("max_binaural_diff")
for v in self.voices.values():
if not self.behaviour.voice_get(v.id, "automate_binaural_diffs"):
continue
val = val or random.random() * self.behaviour.voice_get(v.id, "max_binaural_diff")
v.binaural_diff = val
self.gateway.pd.send(["voice", "binaural", v.id, val])
def set_scale(self, name, min=0, max=128):
'''sets the specified scale and generates a new real scale'''
self.scale = name
self.generate_real_scale(min, max)
@staticmethod
def assemble_real_scale(scale, min=0, max=128):
'''extends the one-octave scale over the specified range'''
real_scale = []
value = 0
for n in xrange(min, max):
value += 1
index = n % len(scale)
if scale[index]:
real_scale.append(value)
return real_scale
def generate_real_scale(self, min=0, max=128):
'''extends the one-octave scale over the specified range'''
scale = SCALES[self.scale]
self.real_scale = self.assemble_real_scale(scale, min, max)
