from rational import Rational
class Output_stack_element:
- def __init__ (self):
- self.factor = Rational (1)
- def copy (self):
- o = Output_stack_element()
- o.factor = self.factor
- return o
+ def __init__ (self):
+ self.factor = Rational (1)
+ def copy (self):
+ o = Output_stack_element()
+ o.factor = self.factor
+ return o
class Output_printer:
- """A class that takes care of formatting (eg.: indenting) a
- Music expression as a .ly file.
-
- """
- ## TODO: support for \relative.
-
- def __init__ (self):
- self._line = ''
- self._indent = 4
- self._nesting = 0
- self._file = sys.stdout
- self._line_len = 72
- self._output_state_stack = [Output_stack_element()]
- self._skipspace = False
- self._last_duration = None
-
- def set_file (self, file):
- self._file = file
-
- def dump_version (self):
- self.newline ()
- self.print_verbatim ('\\version "@TOPLEVEL_VERSION@"')
- self.newline ()
-
- def get_indent (self):
- return self._nesting * self._indent
-
- def override (self):
- last = self._output_state_stack[-1]
- self._output_state_stack.append (last.copy())
-
- def add_factor (self, factor):
- self.override()
- self._output_state_stack[-1].factor *= factor
-
- def revert (self):
- del self._output_state_stack[-1]
- if not self._output_state_stack:
- raise 'empty'
-
- def duration_factor (self):
- return self._output_state_stack[-1].factor
-
- def print_verbatim (self, str):
- self._line += str
-
- def unformatted_output (self, str):
- self._nesting += str.count ('<') + str.count ('{')
- self._nesting -= str.count ('>') + str.count ('}')
- self.print_verbatim (str)
-
- def print_duration_string (self, str):
- if self._last_duration == str:
- return
-
- self.unformatted_output (str)
-
- def add_word (self, str):
- if (len (str) + 1 + len (self._line) > self._line_len):
- self.newline()
- self._skipspace = True
-
- if not self._skipspace:
- self._line += ' '
- self.unformatted_output (str)
- self._skipspace = False
-
- def newline (self):
- self._file.write (self._line + '\n')
- self._line = ' ' * self._indent * self._nesting
- self._skipspace = True
-
- def skipspace (self):
- self._skipspace = True
-
- def __call__(self, arg):
- self.dump (arg)
-
- def dump (self, str):
-
- if self._skipspace:
- self._skipspace = False
- self.unformatted_output (str)
- else:
- words = string.split (str)
- for w in words:
- self.add_word (w)
+ """A class that takes care of formatting (eg.: indenting) a
+ Music expression as a .ly file.
+
+ """
+ ## TODO: support for \relative.
+
+ def __init__ (self):
+ self._line = ''
+ self._indent = 4
+ self._nesting = 0
+ self._file = sys.stdout
+ self._line_len = 72
+ self._output_state_stack = [Output_stack_element()]
+ self._skipspace = False
+ self._last_duration = None
+
+ def set_file (self, file):
+ self._file = file
+
+ def dump_version (self):
+ self.newline ()
+ self.print_verbatim ('\\version "@TOPLEVEL_VERSION@"')
+ self.newline ()
+
+ def get_indent (self):
+ return self._nesting * self._indent
+
+ def override (self):
+ last = self._output_state_stack[-1]
+ self._output_state_stack.append (last.copy())
+
+ def add_factor (self, factor):
+ self.override()
+ self._output_state_stack[-1].factor *= factor
+
+ def revert (self):
+ del self._output_state_stack[-1]
+ if not self._output_state_stack:
+ raise 'empty'
+
+ def duration_factor (self):
+ return self._output_state_stack[-1].factor
+
+ def print_verbatim (self, str):
+ self._line += str
+
+ def unformatted_output (self, str):
+ self._nesting += str.count ('<') + str.count ('{')
+ self._nesting -= str.count ('>') + str.count ('}')
+ self.print_verbatim (str)
+
+ def print_duration_string (self, str):
+ if self._last_duration == str:
+ return
+
+ self.unformatted_output (str)
+
+ def add_word (self, str):
+ if (len (str) + 1 + len (self._line) > self._line_len):
+ self.newline()
+ self._skipspace = True
+
+ if not self._skipspace:
+ self._line += ' '
+ self.unformatted_output (str)
+ self._skipspace = False
+
+ def newline (self):
+ self._file.write (self._line + '\n')
+ self._line = ' ' * self._indent * self._nesting
+ self._skipspace = True
+
+ def skipspace (self):
+ self._skipspace = True
+
+ def __call__(self, arg):
+ self.dump (arg)
+
+ def dump (self, str):
+
+ if self._skipspace:
+ self._skipspace = False
+ self.unformatted_output (str)
+ else:
+ words = string.split (str)
+ for w in words:
+ self.add_word (w)
class Duration:
- def __init__ (self):
- self.duration_log = 0
- self.dots = 0
- self.factor = Rational (1)
-
- def lisp_expression (self):
- return '(ly:make-duration %d %d %d %d)' % (self.duration_log,
- self.dots,
- self.factor.numerator (),
- self.factor.denominator ())
-
-
- def ly_expression (self, factor = None):
- if not factor:
- factor = self.factor
-
- str = '%d%s' % (1 << self.duration_log, '.'*self.dots)
-
- if factor <> Rational (1,1):
- str += '*%d/%d' % (factor.numerator (), factor.denominator ())
-
- return str
-
- def print_ly (self, outputter):
- str = self.ly_expression (self.factor / outputter.duration_factor ())
- outputter.print_duration_string (str)
-
- def __repr__(self):
- return self.ly_expression()
-
- def copy (self):
- d = Duration ()
- d.dots = self.dots
- d.duration_log = self.duration_log
- d.factor = self.factor
- return d
-
- def get_length (self):
- dot_fact = Rational( (1 << (1 + self.dots))-1,
- 1 << self.dots)
-
- log = abs (self.duration_log)
- dur = 1 << log
- if self.duration_log < 0:
- base = Rational (dur)
- else:
- base = Rational (1, dur)
-
- return base * dot_fact * self.factor
-
-
+ def __init__ (self):
+ self.duration_log = 0
+ self.dots = 0
+ self.factor = Rational (1)
+
+ def lisp_expression (self):
+ return '(ly:make-duration %d %d %d %d)' % (self.duration_log,
+ self.dots,
+ self.factor.numerator (),
+ self.factor.denominator ())
+
+
+ def ly_expression (self, factor = None):
+ if not factor:
+ factor = self.factor
+
+ str = '%d%s' % (1 << self.duration_log, '.'*self.dots)
+
+ if factor <> Rational (1,1):
+ str += '*%d/%d' % (factor.numerator (), factor.denominator ())
+
+ return str
+
+ def print_ly (self, outputter):
+ str = self.ly_expression (self.factor / outputter.duration_factor ())
+ outputter.print_duration_string (str)
+
+ def __repr__(self):
+ return self.ly_expression()
+
+ def copy (self):
+ d = Duration ()
+ d.dots = self.dots
+ d.duration_log = self.duration_log
+ d.factor = self.factor
+ return d
+
+ def get_length (self):
+ dot_fact = Rational( (1 << (1 + self.dots))-1,
+ 1 << self.dots)
+
+ log = abs (self.duration_log)
+ dur = 1 << log
+ if self.duration_log < 0:
+ base = Rational (dur)
+ else:
+ base = Rational (1, dur)
+
+ return base * dot_fact * self.factor
+
+
class Pitch:
- def __init__ (self):
- self.alteration = 0
- self.step = 0
- self.octave = 0
-
- def __repr__(self):
- return self.ly_expression()
-
- def transposed (self, interval):
- c = self.copy ()
- c.alteration += interval.alteration
- c.step += interval.step
- c.octave += interval.octave
- c.normalize ()
-
- target_st = self.semitones() + interval.semitones()
- c.alteration += target_st - c.semitones()
- return c
-
- def normalize (c):
- while c.step < 0:
- c.step += 7
- c.octave -= 1
- c.octave += c.step / 7
- c.step = c.step % 7
-
-
- def lisp_expression (self):
- return '(ly:make-pitch %d %d %d)' % (self.octave,
- self.step,
- self.alteration)
-
- def copy (self):
- p = Pitch ()
- p.alteration = self.alteration
- p.step = self.step
- p.octave = self.octave
- return p
-
- def steps (self):
- return self.step + self.octave *7
-
- def semitones (self):
- return self.octave * 12 + [0,2,4,5,7,9,11][self.step] + self.alteration
-
- def ly_step_expression (self):
- str = 'cdefgab'[self.step]
- if self.alteration > 0:
- str += 'is'* (self.alteration)
- elif self.alteration < 0:
- str += 'es'* (-self.alteration)
-
- return str.replace ('aes', 'as').replace ('ees', 'es')
-
- def ly_expression (self):
- str = self.ly_step_expression ()
- if self.octave >= 0:
- str += "'" * (self.octave + 1)
- elif self.octave < -1:
- str += "," * (-self.octave - 1)
-
- return str
- def print_ly (self, outputter):
- outputter (self.ly_expression())
-
+ def __init__ (self):
+ self.alteration = 0
+ self.step = 0
+ self.octave = 0
+
+ def __repr__(self):
+ return self.ly_expression()
+
+ def transposed (self, interval):
+ c = self.copy ()
+ c.alteration += interval.alteration
+ c.step += interval.step
+ c.octave += interval.octave
+ c.normalize ()
+
+ target_st = self.semitones() + interval.semitones()
+ c.alteration += target_st - c.semitones()
+ return c
+
+ def normalize (c):
+ while c.step < 0:
+ c.step += 7
+ c.octave -= 1
+ c.octave += c.step / 7
+ c.step = c.step % 7
+
+
+ def lisp_expression (self):
+ return '(ly:make-pitch %d %d %d)' % (self.octave,
+ self.step,
+ self.alteration)
+
+ def copy (self):
+ p = Pitch ()
+ p.alteration = self.alteration
+ p.step = self.step
+ p.octave = self.octave
+ return p
+
+ def steps (self):
+ return self.step + self.octave *7
+
+ def semitones (self):
+ return self.octave * 12 + [0,2,4,5,7,9,11][self.step] + self.alteration
+
+ def ly_step_expression (self):
+ str = 'cdefgab'[self.step]
+ if self.alteration > 0:
+ str += 'is'* (self.alteration)
+ elif self.alteration < 0:
+ str += 'es'* (-self.alteration)
+
+ return str.replace ('aes', 'as').replace ('ees', 'es')
+
+ def ly_expression (self):
+ str = self.ly_step_expression ()
+ if self.octave >= 0:
+ str += "'" * (self.octave + 1)
+ elif self.octave < -1:
+ str += "," * (-self.octave - 1)
+
+ return str
+ def print_ly (self, outputter):
+ outputter (self.ly_expression())
+
class Music:
- def __init__ (self):
- self.parent = None
- self.start = Rational (0)
- self.comment = ''
- self.identifier = None
-
- def get_length(self):
- return Rational (0)
-
- def get_properties (self):
- return ''
-
- def has_children (self):
- return False
-
- def get_index (self):
- if self.parent:
- return self.parent.elements.index (self)
- else:
- return None
- def name (self):
- return self.__class__.__name__
-
- def lisp_expression (self):
- name = self.name()
-
- props = self.get_properties ()
-# props += 'start %f ' % self.start
-
- return "(make-music '%s %s)" % (name, props)
-
- def set_start (self, start):
- self.start = start
-
- def find_first (self, predicate):
- if predicate (self):
- return self
- return None
-
- def print_comment (self, printer, text = None):
- if not text:
- text = self.comment
-
- if not text:
- return
-
-
- if text == '\n':
- printer.newline ()
- return
- lines = string.split (text, '\n')
- for l in lines:
- if l:
- printer.dump ('% ' + l)
- printer.newline ()
-
-
- def print_with_identifier (self, printer):
- if self.identifier:
- printer ("\\%s" % self.identifier)
- else:
- self.print_ly (printer)
-
- def print_ly (self, printer):
- printer (self.ly_expression ())
+ def __init__ (self):
+ self.parent = None
+ self.start = Rational (0)
+ self.comment = ''
+ self.identifier = None
+
+ def get_length(self):
+ return Rational (0)
+
+ def get_properties (self):
+ return ''
+
+ def has_children (self):
+ return False
+
+ def get_index (self):
+ if self.parent:
+ return self.parent.elements.index (self)
+ else:
+ return None
+ def name (self):
+ return self.__class__.__name__
+
+ def lisp_expression (self):
+ name = self.name()
+
+ props = self.get_properties ()
+# props += 'start %f ' % self.start
+
+ return "(make-music '%s %s)" % (name, props)
+
+ def set_start (self, start):
+ self.start = start
+
+ def find_first (self, predicate):
+ if predicate (self):
+ return self
+ return None
+
+ def print_comment (self, printer, text = None):
+ if not text:
+ text = self.comment
+
+ if not text:
+ return
+
+
+ if text == '\n':
+ printer.newline ()
+ return
+ lines = string.split (text, '\n')
+ for l in lines:
+ if l:
+ printer.dump ('% ' + l)
+ printer.newline ()
+
+
+ def print_with_identifier (self, printer):
+ if self.identifier:
+ printer ("\\%s" % self.identifier)
+ else:
+ self.print_ly (printer)
+
+ def print_ly (self, printer):
+ printer (self.ly_expression ())
class MusicWrapper (Music):
- def __init__ (self):
- Music.__init__(self)
- self.element = None
- def print_ly (self, func):
- self.element.print_ly (func)
+ def __init__ (self):
+ Music.__init__(self)
+ self.element = None
+ def print_ly (self, func):
+ self.element.print_ly (func)
class TimeScaledMusic (MusicWrapper):
- def print_ly (self, func):
- func ('\\times %d/%d ' %
- (self.numerator, self.denominator))
- func.add_factor (Rational (self.numerator, self.denominator))
- MusicWrapper.print_ly (self, func)
- func.revert ()
+ def print_ly (self, func):
+ func ('\\times %d/%d ' %
+ (self.numerator, self.denominator))
+ func.add_factor (Rational (self.numerator, self.denominator))
+ MusicWrapper.print_ly (self, func)
+ func.revert ()
class NestedMusic(Music):
- def __init__ (self):
- Music.__init__ (self)
- self.elements = []
-
- def append (self, what):
- if what:
- self.elements.append (what)
-
- def has_children (self):
- return self.elements
-
- def insert_around (self, succ, elt, dir):
- assert elt.parent == None
- assert succ == None or succ in self.elements
-
-
- idx = 0
- if succ:
- idx = self.elements.index (succ)
- if dir > 0:
- idx += 1
- else:
- if dir < 0:
- idx = 0
- elif dir > 0:
- idx = len (self.elements)
-
- self.elements.insert (idx, elt)
- elt.parent = self
-
- def get_properties (self):
- return ("'elements (list %s)"
- % string.join (map (lambda x: x.lisp_expression(),
- self.elements)))
-
- def get_subset_properties (self, predicate):
- return ("'elements (list %s)"
- % string.join (map (lambda x: x.lisp_expression(),
- filter ( predicate, self.elements))))
- def get_neighbor (self, music, dir):
- assert music.parent == self
- idx = self.elements.index (music)
- idx += dir
- idx = min (idx, len (self.elements) -1)
- idx = max (idx, 0)
-
- return self.elements[idx]
-
- def delete_element (self, element):
- assert element in self.elements
-
- self.elements.remove (element)
- element.parent = None
-
- def set_start (self, start):
- self.start = start
- for e in self.elements:
- e.set_start (start)
-
- def find_first (self, predicate):
- r = Music.find_first (self, predicate)
- if r:
- return r
-
- for e in self.elements:
- r = e.find_first (predicate)
- if r:
- return r
- return None
-
+ def __init__ (self):
+ Music.__init__ (self)
+ self.elements = []
+
+ def append (self, what):
+ if what:
+ self.elements.append (what)
+
+ def has_children (self):
+ return self.elements
+
+ def insert_around (self, succ, elt, dir):
+ assert elt.parent == None
+ assert succ == None or succ in self.elements
+
+
+ idx = 0
+ if succ:
+ idx = self.elements.index (succ)
+ if dir > 0:
+ idx += 1
+ else:
+ if dir < 0:
+ idx = 0
+ elif dir > 0:
+ idx = len (self.elements)
+
+ self.elements.insert (idx, elt)
+ elt.parent = self
+
+ def get_properties (self):
+ return ("'elements (list %s)"
+ % string.join (map (lambda x: x.lisp_expression(),
+ self.elements)))
+
+ def get_subset_properties (self, predicate):
+ return ("'elements (list %s)"
+ % string.join (map (lambda x: x.lisp_expression(),
+ filter ( predicate, self.elements))))
+ def get_neighbor (self, music, dir):
+ assert music.parent == self
+ idx = self.elements.index (music)
+ idx += dir
+ idx = min (idx, len (self.elements) -1)
+ idx = max (idx, 0)
+
+ return self.elements[idx]
+
+ def delete_element (self, element):
+ assert element in self.elements
+
+ self.elements.remove (element)
+ element.parent = None
+
+ def set_start (self, start):
+ self.start = start
+ for e in self.elements:
+ e.set_start (start)
+
+ def find_first (self, predicate):
+ r = Music.find_first (self, predicate)
+ if r:
+ return r
+
+ for e in self.elements:
+ r = e.find_first (predicate)
+ if r:
+ return r
+ return None
+
class SequentialMusic (NestedMusic):
- def print_ly (self, printer):
- printer ('{')
- if self.comment:
- self.print_comment (printer)
-
- printer.newline()
- for e in self.elements:
- e.print_ly (printer)
-
- printer ('}')
- printer.newline()
-
- def lisp_sub_expression (self, pred):
- name = self.name()
-
-
- props = self.get_subset_properties (pred)
-
- return "(make-music '%s %s)" % (name, props)
-
- def set_start (self, start):
- for e in self.elements:
- e.set_start (start)
- start += e.get_length()
-
+ def print_ly (self, printer):
+ printer ('{')
+ if self.comment:
+ self.print_comment (printer)
+
+ printer.newline()
+ for e in self.elements:
+ e.print_ly (printer)
+
+ printer ('}')
+ printer.newline()
+
+ def lisp_sub_expression (self, pred):
+ name = self.name()
+
+
+ props = self.get_subset_properties (pred)
+
+ return "(make-music '%s %s)" % (name, props)
+
+ def set_start (self, start):
+ for e in self.elements:
+ e.set_start (start)
+ start += e.get_length()
+
class EventChord(NestedMusic):
- def get_length (self):
- l = Rational (0)
- for e in self.elements:
- l = max(l, e.get_length())
- return l
-
- def print_ly (self, printer):
- note_events = [e for e in self.elements if
- isinstance (e, NoteEvent)]
-
- rest_events = [e for e in self.elements if
- isinstance (e, RhythmicEvent)
- and not isinstance (e, NoteEvent)]
-
- other_events = [e for e in self.elements if
- not isinstance (e, RhythmicEvent)]
-
- if rest_events:
- rest_events[0].print_ly (printer)
- elif len (note_events) == 1:
- note_events[0].print_ly (printer)
- elif note_events:
- pitches = [x.pitch.ly_expression () for x in note_events]
- printer ('<%s>' % string.join (pitches))
- note_events[0].duration.print_ly (printer)
- else:
- pass
-
- # print 'huh', rest_events, note_events, other_events
- for e in other_events:
- e.print_ly (printer)
-
- self.print_comment (printer)
-
+ def get_length (self):
+ l = Rational (0)
+ for e in self.elements:
+ l = max(l, e.get_length())
+ return l
+
+ def print_ly (self, printer):
+ note_events = [e for e in self.elements if
+ isinstance (e, NoteEvent)]
+
+ rest_events = [e for e in self.elements if
+ isinstance (e, RhythmicEvent)
+ and not isinstance (e, NoteEvent)]
+
+ other_events = [e for e in self.elements if
+ not isinstance (e, RhythmicEvent)]
+
+ if rest_events:
+ rest_events[0].print_ly (printer)
+ elif len (note_events) == 1:
+ note_events[0].print_ly (printer)
+ elif note_events:
+ pitches = [x.pitch.ly_expression () for x in note_events]
+ printer ('<%s>' % string.join (pitches))
+ note_events[0].duration.print_ly (printer)
+ else:
+ pass
+
+ # print 'huh', rest_events, note_events, other_events
+ for e in other_events:
+ e.print_ly (printer)
+
+ self.print_comment (printer)
+
class Event(Music):
- pass
+ pass
class SpanEvent (Event):
- def __init__(self):
- Event.__init__ (self)
- self.span_direction = 0
- def get_properties(self):
- return "'span-direction %d" % self.span_direction
-
+ def __init__(self):
+ Event.__init__ (self)
+ self.span_direction = 0
+ def get_properties(self):
+ return "'span-direction %d" % self.span_direction
+
class SlurEvent (SpanEvent):
- def ly_expression (self):
- return {-1: '(',
- 0:'',
- 1:')'}[self.span_direction]
+ def ly_expression (self):
+ return {-1: '(',
+ 0:'',
+ 1:')'}[self.span_direction]
class BeamEvent (SpanEvent):
- def ly_expression (self):
- return {-1: '[',
- 0:'',
- 1:']'}[self.span_direction]
+ def ly_expression (self):
+ return {-1: '[',
+ 0:'',
+ 1:']'}[self.span_direction]
class ArpeggioEvent(Event):
- def ly_expression (self):
- return ('\\arpeggio')
+ def ly_expression (self):
+ return ('\\arpeggio')
class TieEvent(Event):
- def ly_expression (self):
- return '~'
+ def ly_expression (self):
+ return '~'
-
+
class RhythmicEvent(Event):
- def __init__ (self):
- Event.__init__ (self)
- self.duration = Duration()
-
- def get_length (self):
- return self.duration.get_length()
-
- def get_properties (self):
- return ("'duration %s"
- % self.duration.lisp_expression ())
-
+ def __init__ (self):
+ Event.__init__ (self)
+ self.duration = Duration()
+
+ def get_length (self):
+ return self.duration.get_length()
+
+ def get_properties (self):
+ return ("'duration %s"
+ % self.duration.lisp_expression ())
+
class RestEvent (RhythmicEvent):
- def ly_expression (self):
- return 'r%s' % self.duration.ly_expression ()
-
- def print_ly (self, printer):
- printer('r')
- self.duration.print_ly (printer)
+ def ly_expression (self):
+ return 'r%s' % self.duration.ly_expression ()
+
+ def print_ly (self, printer):
+ printer('r')
+ self.duration.print_ly (printer)
class SkipEvent (RhythmicEvent):
- def ly_expression (self):
- return 's%s' % self.duration.ly_expression ()
+ def ly_expression (self):
+ return 's%s' % self.duration.ly_expression ()
class NoteEvent(RhythmicEvent):
- def __init__ (self):
- RhythmicEvent.__init__ (self)
- self.pitch = Pitch()
- self.cautionary = False
- self.forced_accidental = False
-
- def get_properties (self):
- return ("'pitch %s\n 'duration %s"
- % (self.pitch.lisp_expression (),
- self.duration.lisp_expression ()))
-
- def pitch_mods (self):
- excl_question = ''
- if self.cautionary:
- excl_question += '?'
- if self.forced_accidental:
- excl_question += '!'
-
- return excl_question
-
- def ly_expression (self):
- return '%s%s%s' % (self.pitch.ly_expression (),
- self.pitch_mods(),
- self.duration.ly_expression ())
-
- def print_ly (self, printer):
- self.pitch.print_ly (printer)
- printer (self.pitch_mods ())
- self.duration.print_ly (printer)
+ def __init__ (self):
+ RhythmicEvent.__init__ (self)
+ self.pitch = Pitch()
+ self.cautionary = False
+ self.forced_accidental = False
+
+ def get_properties (self):
+ return ("'pitch %s\n 'duration %s"
+ % (self.pitch.lisp_expression (),
+ self.duration.lisp_expression ()))
+
+ def pitch_mods (self):
+ excl_question = ''
+ if self.cautionary:
+ excl_question += '?'
+ if self.forced_accidental:
+ excl_question += '!'
+
+ return excl_question
+
+ def ly_expression (self):
+ return '%s%s%s' % (self.pitch.ly_expression (),
+ self.pitch_mods(),
+ self.duration.ly_expression ())
+
+ def print_ly (self, printer):
+ self.pitch.print_ly (printer)
+ printer (self.pitch_mods ())
+ self.duration.print_ly (printer)
class KeySignatureChange (Music):
- def __init__ (self):
- Music.__init__ (self)
- self.scale = []
- self.tonic = Pitch()
- self.mode = 'major'
-
- def ly_expression (self):
- return '\\key %s \\%s' % (self.tonic.ly_step_expression (),
- self.mode)
-
- def lisp_expression (self):
- pairs = ['(%d . %d)' % (i , self.scale[i]) for i in range (0,7)]
- scale_str = ("'(%s)" % string.join (pairs))
-
- return """ (make-music 'KeyChangeEvent
- 'pitch-alist %s) """ % scale_str
+ def __init__ (self):
+ Music.__init__ (self)
+ self.scale = []
+ self.tonic = Pitch()
+ self.mode = 'major'
+
+ def ly_expression (self):
+ return '\\key %s \\%s' % (self.tonic.ly_step_expression (),
+ self.mode)
+
+ def lisp_expression (self):
+ pairs = ['(%d . %d)' % (i , self.scale[i]) for i in range (0,7)]
+ scale_str = ("'(%s)" % string.join (pairs))
+
+ return """ (make-music 'KeyChangeEvent
+ 'pitch-alist %s) """ % scale_str
class TimeSignatureChange (Music):
- def __init__ (self):
- Music.__init__ (self)
- self.fraction = (4,4)
- def ly_expression (self):
- return '\\time %d/%d ' % self.fraction
-
+ def __init__ (self):
+ Music.__init__ (self)
+ self.fraction = (4,4)
+ def ly_expression (self):
+ return '\\time %d/%d ' % self.fraction
+
class ClefChange (Music):
- def __init__ (self):
- Music.__init__ (self)
- self.type = 'G'
-
-
- def ly_expression (self):
- return '\\clef "%s"' % self.type
- clef_dict = {
- "G": ("clefs.G", -2, -6),
- "C": ("clefs.C", 0, 0),
- "F": ("clefs.F", 2, 6),
- }
-
- def lisp_expression (self):
- (glyph, pos, c0) = self.clef_dict [self.type]
- clefsetting = """
- (make-music 'SequentialMusic
- 'elements (list
- (context-spec-music
- (make-property-set 'clefGlyph "%s") 'Staff)
- (context-spec-music
- (make-property-set 'clefPosition %d) 'Staff)
- (context-spec-music
- (make-property-set 'middleCPosition %d) 'Staff)))
+ def __init__ (self):
+ Music.__init__ (self)
+ self.type = 'G'
+
+
+ def ly_expression (self):
+ return '\\clef "%s"' % self.type
+ clef_dict = {
+ "G": ("clefs.G", -2, -6),
+ "C": ("clefs.C", 0, 0),
+ "F": ("clefs.F", 2, 6),
+ }
+
+ def lisp_expression (self):
+ (glyph, pos, c0) = self.clef_dict [self.type]
+ clefsetting = """
+ (make-music 'SequentialMusic
+ 'elements (list
+ (context-spec-music
+ (make-property-set 'clefGlyph "%s") 'Staff)
+ (context-spec-music
+ (make-property-set 'clefPosition %d) 'Staff)
+ (context-spec-music
+ (make-property-set 'middleCPosition %d) 'Staff)))
""" % (glyph, pos, c0)
- return clefsetting
+ return clefsetting
def test_pitch ():
- bflat = Pitch()
- bflat.alteration = -1
- bflat.step = 6
- bflat.octave = -1
- fifth = Pitch()
- fifth.step = 4
- down = Pitch ()
- down.step = -4
- down.normalize ()
-
-
- print bflat.semitones()
- print bflat.transposed (fifth), bflat.transposed (fifth).transposed (fifth)
- print bflat.transposed (fifth).transposed (fifth).transposed (fifth)
-
- print bflat.semitones(), 'down'
- print bflat.transposed (down)
- print bflat.transposed (down).transposed (down)
- print bflat.transposed (down).transposed (down).transposed (down)
+ bflat = Pitch()
+ bflat.alteration = -1
+ bflat.step = 6
+ bflat.octave = -1
+ fifth = Pitch()
+ fifth.step = 4
+ down = Pitch ()
+ down.step = -4
+ down.normalize ()
+
+
+ print bflat.semitones()
+ print bflat.transposed (fifth), bflat.transposed (fifth).transposed (fifth)
+ print bflat.transposed (fifth).transposed (fifth).transposed (fifth)
+
+ print bflat.semitones(), 'down'
+ print bflat.transposed (down)
+ print bflat.transposed (down).transposed (down)
+ print bflat.transposed (down).transposed (down).transposed (down)
def test_printer ():
- def make_note ():
- evc = EventChord()
- n = NoteEvent()
- evc.append (n)
- return n
-
- def make_tup ():
- m = SequentialMusic()
- m.append (make_note ())
- m.append (make_note ())
- m.append (make_note ())
-
-
- t = TimeScaledMusic ()
- t.numerator = 2
- t.denominator = 3
- t.element = m
- return t
-
- m = SequentialMusic ()
- m.append (make_tup ())
- m.append (make_tup ())
- m.append (make_tup ())
-
- printer = Output_printer()
- m.print_ly (printer)
- printer.newline ()
-
+ def make_note ():
+ evc = EventChord()
+ n = NoteEvent()
+ evc.append (n)
+ return n
+
+ def make_tup ():
+ m = SequentialMusic()
+ m.append (make_note ())
+ m.append (make_note ())
+ m.append (make_note ())
+
+
+ t = TimeScaledMusic ()
+ t.numerator = 2
+ t.denominator = 3
+ t.element = m
+ return t
+
+ m = SequentialMusic ()
+ m.append (make_tup ())
+ m.append (make_tup ())
+ m.append (make_tup ())
+
+ printer = Output_printer()
+ m.print_ly (printer)
+ printer.newline ()
+
def test_expr ():
- m = SequentialMusic()
- l = 2
- evc = EventChord()
- n = NoteEvent()
- n.duration.duration_log = l
- n.pitch.step = 1
- evc.insert_around (None, n, 0)
- m.insert_around (None, evc, 0)
-
- evc = EventChord()
- n = NoteEvent()
- n.duration.duration_log = l
- n.pitch.step = 3
- evc.insert_around (None, n, 0)
- m.insert_around (None, evc, 0)
-
- evc = EventChord()
- n = NoteEvent()
- n.duration.duration_log = l
- n.pitch.step = 2
- evc.insert_around (None, n, 0)
- m.insert_around (None, evc, 0)
-
- evc = ClefChange()
- evc.type = 'treble'
- m.insert_around (None, evc, 0)
-
- evc = EventChord()
- tonic = Pitch ()
- tonic.step = 2
- tonic.alteration = -2
- n = KeySignatureChange()
- n.tonic=tonic.copy()
- n.scale = [0, 0, -2, 0, 0,-2,-2]
-
- evc.insert_around (None, n, 0)
- m.insert_around (None, evc, 0)
-
- return m
+ m = SequentialMusic()
+ l = 2
+ evc = EventChord()
+ n = NoteEvent()
+ n.duration.duration_log = l
+ n.pitch.step = 1
+ evc.insert_around (None, n, 0)
+ m.insert_around (None, evc, 0)
+
+ evc = EventChord()
+ n = NoteEvent()
+ n.duration.duration_log = l
+ n.pitch.step = 3
+ evc.insert_around (None, n, 0)
+ m.insert_around (None, evc, 0)
+
+ evc = EventChord()
+ n = NoteEvent()
+ n.duration.duration_log = l
+ n.pitch.step = 2
+ evc.insert_around (None, n, 0)
+ m.insert_around (None, evc, 0)
+
+ evc = ClefChange()
+ evc.type = 'treble'
+ m.insert_around (None, evc, 0)
+
+ evc = EventChord()
+ tonic = Pitch ()
+ tonic.step = 2
+ tonic.alteration = -2
+ n = KeySignatureChange()
+ n.tonic=tonic.copy()
+ n.scale = [0, 0, -2, 0, 0,-2,-2]
+
+ evc.insert_around (None, n, 0)
+ m.insert_around (None, evc, 0)
+
+ return m
if __name__ == '__main__':
- test_printer ()
- raise 'bla'
- test_pitch()
-
- expr = test_expr()
- expr.set_start (Rational (0))
- print expr.ly_expression()
- start = Rational (0,4)
- stop = Rational (4,2)
- def sub(x, start=start, stop=stop):
- ok = x.start >= start and x.start +x.get_length() <= stop
- return ok
-
- print expr.lisp_sub_expression(sub)
+ test_printer ()
+ raise 'bla'
+ test_pitch()
+
+ expr = test_expr()
+ expr.set_start (Rational (0))
+ print expr.ly_expression()
+ start = Rational (0,4)
+ stop = Rational (4,2)
+ def sub(x, start=start, stop=stop):
+ ok = x.start >= start and x.start +x.get_length() <= stop
+ return ok
+
+ print expr.lisp_sub_expression(sub)
projects / lilypond.git / blobdiff