In this repository I am creating an export-infrastructure for LilyPond. The files presented here are far from production-ready, but at least the functions provided here can create humdrum and musicXML for very simple scores.
With the (pre-alpha-stage) OLL-module this file
\version "2.19.82"
\include "oll-core/package.ily"
\loadPackage lilypond-export
music = \new PianoStaff <<
\new Staff <<
{ \time 3/4 \key es \major \set Timing.tempoWholesPerMinute = #(ly:make-moment 30) \partial 4 s4 | \repeat volta 2 { s2.*3 } }
\relative <<
{ b'4 | c4. a8 g4 | g( bes) <g b> | \tuplet 3/2 { a c a~ } a | } \\
{ r4 | e8 f g fis e4 | es2 d4 | <c e>8[ <b dis> <bes d>] <a cis> <c f>4 }
>>
>>
\new Staff {
\time 3/4 \clef bass \key es \major
\new Voice = "mel" \relative { g4 | c2 c4 | c g b | a2. | }
}
\new Lyrics \lyricsto "mel" { \lyricmode { la la le li lu la lo } }
\new Lyrics \lyricsto "mel" { \lyricmode { ku ka ke ki ku ka ko } }
>>
% exporter can run without actually typesetting
\exportMusic \default hum \music
opts.exporter = #exportMusicXML
% or as a layout extension that is added to the layout
\score {
\music
\layout {
\FileExport #opts
}
\midi {}
}creates a humdrum file (.krn):
**kern **kern
*staff2 *staff1
* *^
=0 =0 =0
*clefF4 *clefG2 *clefG2
*M3/4 *M3/4 *M3/4
*k[e-a-b-] *k[e-a-b-] *k[e-a-b-]
4G 4b 4r
=1 =1 =1
2c 4.cc 8eL
. . 8f
. . 8g
. 8a 8f#J
4c 4g 4e
=2 =2 =2
4c 4g 2e-
4G 4b- .
4B 4g b 4d
=3 =3 =3
2.A 6a 8c eL
. . 8B d#
. 6cc .
. . 8B- dJ
. 6a .
. . 8A c#
. 4a 4c f
=4 =4 =4
=4 =4 =4
*- *- *-
and an XML-file:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE score-partwise
PUBLIC '-//Recordare//DTD MusicXML 3.0 Partwise//EN'
'http://www.musicxml.org/dtds/partwise.dtd'>
<score-partwise version="3.0">
<part-list>
<score-part id="P1">
<part-name>Part 1</part-name>
</score-part>
<score-part id="P2">
<part-name>Part 2</part-name>
</score-part>
</part-list>
<part id="P1">
<measure number="0">
<attributes>
<divisions>128</divisions>
<time>
<beats>3</beats>
<beat-type>4</beat-type>
</time>
</attributes>
<note>
<pitch>
<step>B</step>
<octave>4</octave>
</pitch>
<duration>128</duration>
<voice>1</voice>
<type>quarter</type>
</note>
<backup>
<duration>128</duration>
</backup>
<note>
<rest/>
<duration>128</duration>
<voice>2</voice>
<type>quarter</type>
</note>
</measure>
<measure number="1">
<attributes>
<divisions>128</divisions>
</attributes>
<note>
<pitch>
<step>C</step>
<octave>5</octave>
</pitch>
<duration>192</duration>
<voice>1</voice>
<type>quarter</type>
<dot/>
</note>
<note>
<pitch>
<step>A</step>
<octave>4</octave>
</pitch>
<duration>64</duration>
<voice>1</voice>
<type>eighth</type>
<accidental>natural</accidental>
</note>
<note>
<pitch>
<step>G</step>
<octave>4</octave>
</pitch>
<duration>128</duration>
<voice>1</voice>
<type>quarter</type>
</note>
<backup>
<duration>384</duration>
</backup>
<note>
<pitch>
<step>E</step>
<octave>4</octave>
</pitch>
<duration>64</duration>
<voice>2</voice>
<type>eighth</type>
<accidental>natural</accidental>
<beam number="1">begin</beam>
</note>
<note>
<pitch>
<step>F</step>
<octave>4</octave>
</pitch>
<duration>64</duration>
<voice>2</voice>
<type>eighth</type>
<beam number="1">continue</beam>
</note>
<note>
<pitch>
<step>G</step>
<octave>4</octave>
</pitch>
<duration>64</duration>
<voice>2</voice>
<type>eighth</type>
<beam number="1">continue</beam>
</note>
<note>
<pitch>
<step>F</step>
<alter>1</alter>
<octave>4</octave>
</pitch>
<duration>64</duration>
<voice>2</voice>
<type>eighth</type>
<accidental>sharp</accidental>
<beam number="1">end</beam>
</note>
<note>
<pitch>
<step>E</step>
<octave>4</octave>
</pitch>
<duration>128</duration>
<voice>2</voice>
<type>quarter</type>
</note>
</measure>
<measure number="2">
<attributes>
<divisions>128</divisions>
</attributes>
<note>
<pitch>
<step>G</step>
<octave>4</octave>
</pitch>
<duration>128</duration>
<voice>1</voice>
<type>quarter</type>
</note>
<note>
<pitch>
<step>B</step>
<alter>-1</alter>
<octave>4</octave>
</pitch>
<duration>128</duration>
<voice>1</voice>
<type>quarter</type>
</note>
<note>
<pitch>
<step>G</step>
<octave>4</octave>
</pitch>
<duration>128</duration>
<voice>1</voice>
<type>quarter</type>
</note>
<note>
<chord/>
<pitch>
<step>B</step>
<octave>4</octave>
</pitch>
<duration>128</duration>
<voice>1</voice>
<type>quarter</type>
<accidental>natural</accidental>
</note>
<backup>
<duration>384</duration>
</backup>
<note>
<pitch>
<step>E</step>
<alter>-1</alter>
<octave>4</octave>
</pitch>
<duration>256</duration>
<voice>2</voice>
<type>half</type>
</note>
<note>
<pitch>
<step>D</step>
<octave>4</octave>
</pitch>
<duration>128</duration>
<voice>2</voice>
<type>quarter</type>
</note>
</measure>
<measure number="3">
<attributes>
<divisions>128</divisions>
</attributes>
<note>
<pitch>
<step>A</step>
<octave>4</octave>
</pitch>
<duration>85</duration>
<voice>1</voice>
<type>quarter</type>
<accidental>natural</accidental>
<time-modification>
<actual-notes>3</actual-notes>
<normal-notes>2</normal-notes>
</time-modification>
<notations>
<tuplet number="1" placement="above" type="start"/>
</notations>
</note>
<note>
<pitch>
<step>C</step>
<octave>5</octave>
</pitch>
<duration>85</duration>
<voice>1</voice>
<type>quarter</type>
<time-modification>
<actual-notes>3</actual-notes>
<normal-notes>2</normal-notes>
</time-modification>
</note>
<note>
<pitch>
<step>A</step>
<octave>4</octave>
</pitch>
<duration>86</duration>
<voice>1</voice>
<type>quarter</type>
<time-modification>
<actual-notes>3</actual-notes>
<normal-notes>2</normal-notes>
</time-modification>
<notations>
<tuplet number="1" placement="above" type="stop"/>
</notations>
</note>
<note>
<pitch>
<step>A</step>
<octave>4</octave>
</pitch>
<duration>128</duration>
<voice>1</voice>
<type>quarter</type>
</note>
<backup>
<duration>384</duration>
</backup>
<note>
<pitch>
<step>C</step>
<octave>4</octave>
</pitch>
<duration>64</duration>
<voice>2</voice>
<type>eighth</type>
<beam number="1">begin</beam>
</note>
<note>
<chord/>
<pitch>
<step>E</step>
<octave>4</octave>
</pitch>
<duration>64</duration>
<voice>2</voice>
<type>eighth</type>
<accidental>natural</accidental>
<beam number="1">begin</beam>
</note>
<note>
<pitch>
<step>B</step>
<octave>3</octave>
</pitch>
<duration>64</duration>
<voice>2</voice>
<type>eighth</type>
<accidental>natural</accidental>
<beam number="1">continue</beam>
</note>
<note>
<chord/>
<pitch>
<step>D</step>
<alter>1</alter>
<octave>4</octave>
</pitch>
<duration>64</duration>
<voice>2</voice>
<type>eighth</type>
<accidental>sharp</accidental>
<beam number="1">continue</beam>
</note>
<note>
<pitch>
<step>B</step>
<alter>-1</alter>
<octave>3</octave>
</pitch>
<duration>64</duration>
<voice>2</voice>
<type>eighth</type>
<accidental>flat</accidental>
<beam number="1">end</beam>
</note>
<note>
<chord/>
<pitch>
<step>D</step>
<octave>4</octave>
</pitch>
<duration>64</duration>
<voice>2</voice>
<type>eighth</type>
<accidental>natural</accidental>
<beam number="1">end</beam>
</note>
<note>
<pitch>
<step>A</step>
<octave>3</octave>
</pitch>
<duration>64</duration>
<voice>2</voice>
<type>eighth</type>
<accidental>natural</accidental>
</note>
<note>
<chord/>
<pitch>
<step>C</step>
<alter>1</alter>
<octave>4</octave>
</pitch>
<duration>64</duration>
<voice>2</voice>
<type>eighth</type>
<accidental>sharp</accidental>
</note>
<note>
<pitch>
<step>C</step>
<octave>4</octave>
</pitch>
<duration>128</duration>
<voice>2</voice>
<type>quarter</type>
<accidental>natural</accidental>
</note>
<note>
<chord/>
<pitch>
<step>F</step>
<octave>4</octave>
</pitch>
<duration>128</duration>
<voice>2</voice>
<type>quarter</type>
</note>
</measure>
<measure number="4">
<attributes>
<divisions>128</divisions>
</attributes>
</measure>
</part>
<part id="P2">
<measure number="0">
<attributes>
<divisions>128</divisions>
<time>
<beats>3</beats>
<beat-type>4</beat-type>
</time>
<clef>
<sign>F</sign>
<line>4</line>
</clef>
</attributes>
<attributes>
<clef>
<sign>F</sign>
<line>4</line>
</clef>
</attributes>
<note>
<pitch>
<step>G</step>
<octave>3</octave>
</pitch>
<duration>128</duration>
<voice>2</voice>
<type>quarter</type>
<lyric>
<syllabic>single</syllabic>
<text>la</text>
</lyric>
<lyric>
<syllabic>single</syllabic>
<text>ku</text>
</lyric>
</note>
</measure>
<measure number="1">
<attributes>
<divisions>128</divisions>
</attributes>
<note>
<pitch>
<step>C</step>
<octave>4</octave>
</pitch>
<duration>256</duration>
<voice>2</voice>
<type>half</type>
<lyric>
<syllabic>single</syllabic>
<text>la</text>
</lyric>
<lyric>
<syllabic>single</syllabic>
<text>ka</text>
</lyric>
</note>
<note>
<pitch>
<step>C</step>
<octave>4</octave>
</pitch>
<duration>128</duration>
<voice>2</voice>
<type>quarter</type>
<lyric>
<syllabic>single</syllabic>
<text>le</text>
</lyric>
<lyric>
<syllabic>single</syllabic>
<text>ke</text>
</lyric>
</note>
</measure>
<measure number="2">
<attributes>
<divisions>128</divisions>
</attributes>
<note>
<pitch>
<step>C</step>
<octave>4</octave>
</pitch>
<duration>128</duration>
<voice>2</voice>
<type>quarter</type>
<lyric>
<syllabic>single</syllabic>
<text>li</text>
</lyric>
<lyric>
<syllabic>single</syllabic>
<text>ki</text>
</lyric>
</note>
<note>
<pitch>
<step>G</step>
<octave>3</octave>
</pitch>
<duration>128</duration>
<voice>2</voice>
<type>quarter</type>
<lyric>
<syllabic>single</syllabic>
<text>lu</text>
</lyric>
<lyric>
<syllabic>single</syllabic>
<text>ku</text>
</lyric>
</note>
<note>
<pitch>
<step>B</step>
<octave>3</octave>
</pitch>
<duration>128</duration>
<voice>2</voice>
<type>quarter</type>
<accidental>natural</accidental>
<lyric>
<syllabic>single</syllabic>
<text>la</text>
</lyric>
<lyric>
<syllabic>single</syllabic>
<text>ka</text>
</lyric>
</note>
</measure>
<measure number="3">
<attributes>
<divisions>128</divisions>
</attributes>
<note>
<pitch>
<step>A</step>
<octave>3</octave>
</pitch>
<duration>384</duration>
<voice>2</voice>
<type>half</type>
<dot/>
<accidental>natural</accidental>
<lyric>
<syllabic>single</syllabic>
<text>lo</text>
</lyric>
<lyric>
<syllabic>single</syllabic>
<text>ko</text>
</lyric>
</note>
</measure>
<measure number="4">
<attributes>
<divisions>128</divisions>
</attributes>
</measure>
</part>
</score-partwise>