Double Score

Example script (scamp): examples/Notation & engraving/Abjad & pymusicxml tweaks/double_score.py

Download: double_score.py

Records two performances, turns them into scores, renders to abjad, and sticks them together!

Topics: Notation & engraving › Abjad & pymusicxml tweaks

import abjad
from scamp import *
import random

# one way of setting an initial tempo
s = Session(tempo=100)
oboe = s.new_part("oboe")
bassoon = s.new_part("bassoon")


# define a function for the oboe part
def oboe_part():
    # play random notes until we have
    # passed beat 7 in the session
    end_beat = s.beat + 8
    while s.beat < end_beat - 1:
        pitch = int(random.uniform(67, 79))
        volume = random.uniform(0.5, 1)
        length = random.uniform(0.25, 1)
        oboe.play_note(pitch, volume, length)
    # end with a note of exactly the right
    # length to take us to the end of beat 8
    oboe.play_note(80, 1.0, end_beat - s.beat)


# define a function for the bassoon part
def bassoon_part():
    # simply play quarter notes on random
    # pitches for 8 beats
    end_beat = s.beat + 8
    while s.beat < end_beat:
        bassoon.play_note(
            random.randint(52, 59), 1, 1
        )


print("FIRST SCORE")
s.start_transcribing()
# start the oboe and bassoon parts as two parallel child processes
s.fork(oboe_part)
s.fork(bassoon_part)
# have the session wait for the child processes to finish (return)
s.wait_for_children_to_finish()
performance = s.stop_transcribing()
score1 = performance.to_score()

print("SECOND SCORE")
performance2 = s.start_transcribing()
# start the oboe and bassoon parts as two parallel child processes
s.fork(oboe_part)
s.fork(bassoon_part)
# have the session wait for the child processes to finish (return)
s.wait_for_children_to_finish()
s.stop_transcribing()
score2 = performance2.to_score(title="Score 2")

# Header for score 1
header1_block = abjad.Block(name="header")
header1_block.items.append('piece = "First Piece"')

score1_block = abjad.Block(name="score")
score1_block.items.append(header1_block)
score1_block.items.append(score1.to_abjad(wrap_as_file=False))

# Header for score 2
header2_block = abjad.Block(name="header")
header2_block.items.append('piece = "Second Piece"')

score2_block = abjad.Block(name="score")
score2_block.items.append(header2_block)
score2_block.items.append(score2.to_abjad(wrap_as_file=False))

lilypond_file = abjad.LilyPondFile(items=[score1_block, score2_block])
abjad.show(lilypond_file)
# abjad.persist.as_pdf(lilypond_file, "doublescore.pdf")