def test_write(self): import tempfile pitches = HSeq({"pitch": n} for n in [-2, 0, 2, -3]) seq = pitches | add({"octave": 5, DURATION_64: 16}) | lilypond() f = tempfile.NamedTemporaryFile(suffix=".ly", delete=False) write(f.name, seq) with open(f.name) as g: self.assertEqual(g.read(), "{ c'4 d'4 e'4 f'4 }")
from sebastian.lilypond import write_lilypond # construct sequences using lilypond syntax melody = parse("e4 e f g g f e d c c d e") A = parse("e4. d8 d2") Aprime = parse("d4. c8 c2") two_bars = melody + A + melody + Aprime two_bars = two_bars | midi_to_pitch() two_bars = two_bars | add({"octave": 5}) velocities = [ "pppppp", "ppppp", "pppp", "ppp", "pp", "p", "mp", "mf", "f", "ff", "fff", "ffff" ] for d in velocities: two_bars_with_dynamics = two_bars | dynamics(d) write_midi.write("ode_%s.mid" % (d, ), [two_bars_with_dynamics]) two_bars_ff_lily = two_bars | dynamics("ff") | lilypond() write_lilypond.write("ode_ff.ly", two_bars_ff_lily) crescendo = two_bars | dynamics("ppp", "ff") write_midi.write("ode_crescendo.mid", [crescendo]) write_lilypond.write("ode_crescendo.ly", crescendo | lilypond()) diminuendo = two_bars | dynamics("mf", "pppp") write_midi.write("ode_diminuendo.mid", [diminuendo]) write_lilypond.write("ode_diminuendo.ly", diminuendo | lilypond())
from sebastian.lilypond.interp import parse from sebastian.core.transforms import dynamics, lilypond, midi_to_pitch, add from sebastian.midi import write_midi from sebastian.lilypond import write_lilypond # construct sequences using lilypond syntax melody = parse("e4 e f g g f e d c c d e") A = parse("e4. d8 d2") Aprime = parse("d4. c8 c2") two_bars = melody + A + melody + Aprime two_bars = two_bars | midi_to_pitch() two_bars = two_bars | add({"octave": 5}) velocities = ["pppppp", "ppppp", "pppp", "ppp", "pp", "p", "mp", "mf", "f", "ff", "fff", "ffff"] for d in velocities: two_bars_with_dynamics = two_bars | dynamics(d) write_midi.write("ode_%s.mid" % (d,), [two_bars_with_dynamics]) two_bars_ff_lily = two_bars | dynamics("ff") | lilypond() write_lilypond.write("ode_ff.ly", two_bars_ff_lily) crescendo = two_bars | dynamics("ppp", "ff") write_midi.write("ode_crescendo.mid", [crescendo]) write_lilypond.write("ode_crescendo.ly", crescendo | lilypond()) diminuendo = two_bars | dynamics("mf", "pppp") write_midi.write("ode_diminuendo.mid", [diminuendo]) write_lilypond.write("ode_diminuendo.ly", diminuendo | lilypond())
# play MIDI player.play([seq5]) # write to MIDI write_midi.write("seq5.mid", [seq5]) # contruct a horizontal sequence of scale degrees seq6 = HSeq(Point(degree=degree) for degree in [1, 2, 3, 2, 1]) # put that sequence into C major, octave 4 quavers C_MAJOR = Key("C", major_scale) seq7 = seq6 | add({"octave": 4, DURATION_64: 8}) | degree_in_key(C_MAJOR) # convert to MIDI pitch and play player.play([OSequence(seq7 | midi_pitch())]) # sequence of first four degree of a scale seq8 = HSeq(Point(degree=n) for n in [1, 2, 3, 4]) # add duration and octave seq8 = seq8 | add({DURATION_64: 16, "octave": 5}) # put into C major seq8 = seq8 | degree_in_key(C_MAJOR) # annotate with lilypond seq8 = seq8 | lilypond() # write out lilypond file write("example.ly", seq8)
player.play([seq5]) # write to MIDI write_midi.write("seq5.mid", [seq5]) # contruct a horizontal sequence of scale degrees seq6 = HSeq(Point(degree=degree) for degree in [1, 2, 3, 2, 1]) # put that sequence into C major, octave 4 quavers C_MAJOR = Key("C", major_scale) seq7 = seq6 | add({"octave": 4, DURATION_64: 8}) | degree_in_key(C_MAJOR) # convert to MIDI pitch and play player.play([OSequence(seq7 | midi_pitch())]) # sequence of first four degree of a scale seq8 = HSeq(Point(degree=n) for n in [1, 2, 3, 4]) # add duration and octave seq8 = seq8 | add({DURATION_64: 16, "octave": 5}) # put into C major seq8 = seq8 | degree_in_key(C_MAJOR) # annotate with lilypond seq8 = seq8 | lilypond() # write out lilypond file write("example.ly", seq8)