LilyPond format, of Abjad objects¶
Many Abjad objects can be transformed into LilyPond input:
>>> string = r"\tuplet 3/2 { gs''32 \sfp ( b'' cs''' } b''4.. \trill )"
>>> voice_1 = abjad.Voice(4 * string, name="Voice_1")
>>> note = abjad.select.note(voice_1, 0)
>>> key_signature = abjad.KeySignature(
... abjad.NamedPitchClass("e"), abjad.Mode("major")
... )
>>> abjad.attach(key_signature, note)
>>> command = abjad.VoiceNumber(1)
>>> abjad.attach(command, note)
>>> literal = abjad.LilyPondLiteral(r"\dynamicUp")
>>> abjad.attach(literal, note)
>>> string = r"""
... r4 \tuplet 3/2 { b'32 \sfp ( e'' fs'' } e''4.. \trill )
... \tuplet 3/2 { b'32 \sfp ( e'' fs'' } e''8. ~ \trill )
... e''4 \tuplet 3/2 { b'32 \sfp ( fs'' gs'' } fs''4.. \trill )
... \tuplet 3/2 { b'32 \sfp ( fs'' gs'' } fs''8. \trill )"""
>>> voice_2 = abjad.Voice(string, name="Voice_2")
>>> abjad.override(voice_2).script.direction = "#down"
>>> abjad.override(voice_2).slur.direction = "#down"
>>> abjad.override(voice_2).tie.direction = "#down"
>>> abjad.override(voice_2).tuplet_bracket.stencil = "##f"
>>> staff = abjad.Staff([voice_1, voice_2], name="Example_Staff", simultaneous=True)
>>> score = abjad.Score([staff], name="Example_Score")
>>> abjad.show(score)
Here’s LilyPond input for the score above:
>>> string = abjad.lilypond(score)
>>> print(string)
\context Score = "Example_Score"
<<
\context Staff = "Example_Staff"
<<
\context Voice = "Voice_1"
{
\times 2/3
{
\dynamicUp
\key e \major
\voiceOne
gs''32
\sfp
(
b''32
cs'''32
}
b''4..
- \trill
)
\times 2/3
{
gs''32
\sfp
(
b''32
cs'''32
}
b''4..
- \trill
)
\times 2/3
{
gs''32
\sfp
(
b''32
cs'''32
}
b''4..
- \trill
)
\times 2/3
{
gs''32
\sfp
(
b''32
cs'''32
}
b''4..
- \trill
)
}
\context Voice = "Voice_2"
\with
{
\override script.direction = #down
\override slur.direction = #down
\override tie.direction = #down
\override tuplet_bracket.stencil = ##f
}
{
r4
\times 2/3
{
b'32
\sfp
(
e''32
fs''32
}
e''4..
- \trill
)
\times 2/3
{
b'32
\sfp
(
e''32
fs''32
}
e''8.
- \trill
)
~
e''4
\times 2/3
{
b'32
\sfp
(
fs''32
gs''32
}
fs''4..
- \trill
)
\times 2/3
{
b'32
\sfp
(
fs''32
gs''32
}
fs''8.
- \trill
)
}
>>
>>
Here’s LilyPond input for just voice 1:
>>> string = abjad.lilypond(voice_1)
>>> print(string)
\context Voice = "Voice_1"
{
\times 2/3
{
\dynamicUp
\key e \major
\voiceOne
gs''32
\sfp
(
b''32
cs'''32
}
b''4..
- \trill
)
\times 2/3
{
gs''32
\sfp
(
b''32
cs'''32
}
b''4..
- \trill
)
\times 2/3
{
gs''32
\sfp
(
b''32
cs'''32
}
b''4..
- \trill
)
\times 2/3
{
gs''32
\sfp
(
b''32
cs'''32
}
b''4..
- \trill
)
}
Here’s LilyPond input for the very first note:
>>> note = abjad.select.note(score, 0)
>>> string = abjad.lilypond(note)
>>> print(string)
\dynamicUp
\key e \major
\voiceOne
gs''32
\sfp
(
Discussion.
The output of
abjad.lilypond()is a string.Indentation (4 spaces per level) shows container nesting.