from abjad import *
%load_ext abjad.ext.ipython

pitch_numbers = 4 * [0, 2, 4, 9, 7]
duration = Duration(1, 8)
notes = scoretools.make_notes(pitch_numbers, duration)
staff = Staff(notes)
show(staff)

import os
import tempfile
from abjad.tools import systemtools, topleveltools

tmpdir = tempfile.mkdtemp()
agent = topleveltools.persist(staff)
result = agent.as_midi(tmpdir + os.sep + 'out.mid')
midi_file_path, format_time, render_time = result

from IPython.display import HTML
from base64 import b64encode
midi_file = open(midi_file_path, "rb").read()
midi_encoded = b64encode(midi_file)
embed_tag = '<embed alt="ERROR" type="audio/midi" src="data:audio/midi;base64,{0}">'.format(midi_encoded)
HTML(data=embed_tag)

import os
import tempfile
from abjad.tools import systemtools, topleveltools

tmpdir = tempfile.mkdtemp()
agent = topleveltools.persist(staff)
result = agent.as_midi(tmpdir + os.sep + 'out.mid')
midi_file_path, format_time, render_time = result

soundfont = 'FluidR3_GM.sf2'
tmpaudio = tmpdir + os.sep + 'out.ogg'
cmd = 'fluidsynth -nli -r 48000 -o synth.cpu-cores=2 -T oga -F %s %s %s' % (tmpaudio, soundfont, midi_file_path)
result = systemtools.IOManager.spawn_subprocess(cmd)

from IPython.display import HTML
from base64 import b64encode
audio_file = open(tmpaudio, "rb").read()
audio_encoded = b64encode(audio_file)
audio_tag = '<audio controls type="audio/ogg" src="data:audio/ogg;base64,{0}">'.format(audio_encoded)
HTML(data=audio_tag)