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533 bytes added ,  18:21, 25 January 2021
adapt to current working setup
< [[Graphics]] | [[Using Graphics]] >
[http://www.lilypond.org LilyPond] is a great music engraver, and you can include LilyPond in ConTeXt source using [[moduleshttps:t-lilypond|//github.com/adityam/filter the lilypond filter module]with some setup. This is different from using the lilypond-book preprocessor with LaTeX. (For LaTeX there’s also a package that works similar to our ConTeXt setup here: [https://github.com/jperon/lyluatex lyluatex].)
== Simple Filter Setup == This works with ConTeXt MkII and MkIV, but takes only the first page of multi-pages scores, and you must create the folder "lilytemp" manually:
* First you need a working, recent [http://www.lilypond.org LilyPond] installation (version 2.10+) plus dependencies like GhostScript.
* Include the lilypond module
<texcode>
\def\readPDFfile#1{\externalfigure[#1]} \usemodule[filter]\defineexternalfilter[lilypond] [continue=yes, readcommand=\readPDFfile, directory=lilytemp/, % directory for LilyPond's files output={\externalfilterbasefile.pdf}, filtercommand={lilypond-dbackend=eps -ddelete-intermediate-files -o"lilytemp/\externalfilterbasefile" "\externalfilterinputfile"}]
</texcode>
* If you want, you can change the default settings using <cmd>setuplilypond</cmd>
* If you need lyrics with accented characters (e.g. umlauts), you '''must''' typeset in UTF-8 encoding (see [[Encodings_and_Regimes]]), because LilyPond doesn't understand anything else. And you need to use UTF-8 without BOM (byte order marker), because ConTeXt doesn't understand BOMs.
* The module should work with LuaTeX, thanks to Mojka Miklavec.
==Multi Page Filter Setup = options ==={| style="border: solid 1px black; padding: 0.5em; vertical-align: top; width: 80%;" |- style="border: solid 1px black; padding: 0.5em; vertical-align: top; background: #eeeeee;"! option !! values !! default !! meaning|-| staffsize || number (pt) || 20 || height of the staff|-| linewidth || measure || <cmd>localhsize</cmd> || width of the staff|-| betweensystemspace || measure || 54pt || space between systems|-| align || yes/no || depends on fragment || ragged-right = (not align)|-| indent || measure || 0pt || first line indent|-| time || yes/no || yes || count the time (i.e. show time signature, draw bars, split the staff)?|-| clef || yes/no || yes || show the clef?|-| fragment || yes/no || no || typeset only a snippet (instead of a whole line)?|-| barnumbers || yes/no || no || show measure numbers?|-| showempty || yes/no || no || drop empty staves?|-| seriffont || "name" || "Century Schoolbook L" || serif font (e.g. for Lyrics and \markup)|-| sansfont || "name" || "LMSans10" || sans serif font (e.g. for chords)|-| monofont || "name" || "Bitstream Vera Sans Mono" || monospace font (normally not used)|}
== Snippets ==This uses Lua and therefore only works with ConTeXt MkIV. It includes all pages of multi-page scores.It doesn’t look into the complete (multi-page) PDF, but reads a "-system.count" auxiliary file written by LilyPond that contains the number of systems (pages) and includes the single-system PDFs.
<texcode>
There are some notes \lilyponddef\LILYTEMP{lilytemp} % name of folder for LilyPond/buffer files \def\ParseLilypondFile#1% #1 is the name of the output file { \relativectxlua{bes a c bthirddata.parselilypondfile("#1")}}  \startluacode thirddata = thirddata or {} embedded in this line -- create temp folder if missing if not lfs.isdir("\LILYTEMP") then lfs.mkdir("\LILYTEMP") end function thirddata.parselilypondfile(name) -- include all systems (pages) -- name is like \LILYTEMP/mainfile-temp-lilypond-21.pdf logs.report("LILYPOND","name='" .. name .. "'") local scname = string.gsub(name, '%.pdf$', '-systems.count') local syco = tonumber(io.loaddata(scname)) or 0 for nr = 1, syco do logs.report("LILYPOND","including system no." .. nr) context("\\externalfigure[" .. string.gsub(name, '%.pdf$', '-' .. nr) .. "]") end end\stopluacode \usemodule[filter]\defineexternalfilter[lilypond] [continue=yes, cache=yes, readcommand=\ParseLilypondFile, directory=\LILYTEMP/, output={\externalfilterbasefile.pdf}, filtercommand={lilypond -dbackend=eps -ddelete-intermediate-files -o"\LILYTEMP/\externalfilterbasefile/" "\externalfilterinputfile"},]
</texcode>
== Sections ==
E.g. for == LilyPond Settings == Collect your LilyPond settings in a songbook you want to place big chunks of LilyPond output (i.e. note staffs) ly file, put it in your text. It behaves lilytemp directory and include it from within your lilypond block like any other graphics, especially similar to embedded [[MetaPost]] codethis:
<texcode>
\section{A Tune}
 
\startlilypond
\relative { \repeat volta 2 { \partial 4 e4 | a2 c4 d | e2 f4 e | d2. c4 | b4. c8 d4 e | a,2 c4 d | e2 f4 e | g,2 a | \partial 2. b2. | } \repeat volta 2 { \partial 4 r4 | f' g f d | e f e c | a b c d | e2include "mysettings. e4 | f g f8 e d4 |ly" e f e c | a c b8 a g4 | } \alternative { { \partial 2. g2. } { \partial 2. a2. } }}
\stoplilypond
</texcode>
 
You can avoid this \include line following [http://modules.contextgarden.net/dl/t-filter/doc/context/third/filter/filter.txt filter module documentation], section "Prepend and append text".
In short: you can inline your complete LilyPond settings or at least the include line:
There's nothing to say about this tune yet; someone heard it from Lúnasa<texcode>\startbuffer[lilypond::settings]\include "mysettings.ly"\stopbuffer \defineexternalfilter[lilypond][ ... bufferbefore={lilypond::settings}, ...]
</texcode>
 
=== Sample Include File ===
 
"mysettings.ly" could look like this:
<texcode>
\section{Starlight version "2.18.2"#(roundly:set-option (quote no-point-and-click))#(set-global-staff-size 14) % --- start of setup for single-line output files ---#(define default-toplevel-book-handler print-book-with-defaults-as-systems ) #(define toplevel-book-handler (lambda ( . rest) (set! output-empty-score-list #f) (apply print-book-with-defaults rest))) #(define toplevel-music-handler (lambda ( . rest) (apply collect-music-for-book rest))) #(define toplevel-score-handler (lambda ( . rest) (apply collect-scores-for-book rest)))}
#(define toplevel-text-handler (lambda ( . rest) (apply collect-scores-for-book rest))) #(set! output-empty-score-list #t) % --- stop single-line setup --- \startlilypondpaper {<< #(define dump-extents #t) indent = 0\context Staff mm ragged-bottom = ##t ragged-last-bottom = ##t print-page-number = onlyone <<##f line-width = 120\clef treblemm \key a \majoroddFooterMarkup = ##f \time 6/8oddHeaderMarkup = ##f \context Voice bookTitleMarkup = one {##f \relative c'' { scoreTitleMarkup = ##f a4.^\markup{1.} e' | e8( d cis) b4. | e4.^\markuplayout {2.} d4 d8 | cis #( blayout-set-staff-size 14) a b4 e% beware,8 |this resets fonts! % set fonts for rm / ss / tt a4 a8 gis #(define fonts (make-pango-font-tree "TeX Gyre Schola" "LMSans10" "LMTypewriter10 Regular" ( a/ 14 20)) b | cis4 cis8 b( cis d) | cis( d) e e4 e,8 | \context { \Score fis4 fis8 gis4. \remove "Bar_number_engraver" }\override PaperColumn #'keep-inside-line = ##t }>> % some example settings \context { \lyricsto one Staff \new Lyrics {override TimeSignature #'style = #'numbered } \lyricmode context {\ChordNames Star -- light, star -- bright,chordChanges = ##t first star I see to -- night; I wish I may, I wish I might have the wish I wish to -- night.majorSevenSymbol = \markup{ 7+ }
}
}
>>
\stoplilypond
</texcode>
Please look up the meaning of settings in [http://lilypond.org/doc/v2.22/Documentation/web/manuals LilyPond’s great documentation]! If you’d like to exchange measures like text width between ConTeXt and LilyPond, you could write those into the LilyPond buffer (see below). To give LilyPond measures to ConTeXt, you would need to write them into a temp file (using Scheme) and read that in again (using Lua).For the time being this is left as an exercise to the user. ;) Unfortunately you can’t define LilyPond’s text (lyrics) size with an absolute value, but only relative to staff size... == Font hints Named Buffers == Normally, your LilyPond snippets just get a running number. If you re-order your scores, each one gets re-rendered. You can avoid that if you name your LilyPond snippets: just add <tt>[name=myfunnyname]</tt> to {{cmd|startlilypond}}. If you have just one LilyPond part per component (e.g. songs in a songbook), you could use <tt>[name=\currentcomponent]</tt>.
LilyPond depends on the fonts that pango/fontconfig can find. But not even all of those will work, e.g. no fonts from the TeX tree (don't know why), only one face per font file etc.Therefore it doesn't use ConTeXt's font setup.== Automatical width adaption ==
If you want to know which fonts of set your system LilyPond can see with which namesnote line width automatically to your current text width, try lilypond -dshow-available-fonts any(The 3rd parameter is necessary, but can be anything.)this:
LilyPond's default text font is Century Schoolbook -- this goes after "create temp folder" io.savedata("\LILYTEMP/texsettings.ly", "\\paper { line-width = " .. You can use it in ConTeXt like this: string.gsub(number.todimen(tex.dimen.textwidth),"pt","\\pt") .. " } \n")
and then adapt your snippets or preamble buffer:
<texcode>
\starttypescript[wiki][songbook]include "../mysettings.ly"\usetypescript [serif] [schoolbook] [\defaultencoding]include "texsettings.ly"\definetypeface [songbook] [rm] [serif] [schoolbook] [default] [encoding=\defaultencoding]</texcode>\definetypeface [songbook] [ss] [sans] [default][default] [encoding=ec]\definetypeface [songbook] [tt] [mono] [default][default] [encoding=ec]\stoptypescriptYou must comment/delete the "line-width" setting in mysettings.ly, otherwise it doesn’t work.
\usetypescript [wiki] [songbook]\setupbodyfont[songbook, rm, 8.5pt]</texcode>== Example ==
== Current workarounds ==Here's an example of placing score snippets in the body of the text, with fonts in the score & body matching:
This section lists workarounds needed in some circumstances; we surely hope to move them to [[#Older_Workarounds|'''Older Workarounds''']] as soon as possible!<texcode>\def\LILYTEMP{lilytemp} % name of folder for LilyPond/buffer files
=== Typesetting fret diagrams ===\def\ParseLilypondFile#1% #1 is the name of the output file {\ctxlua{thirddata.parselilypondfile("#1")}}
Lilypond has commands to typeset fret diagrams for the guitar chords. The most important one is called <code>\fret-diagram</code> and if you want to use it, you need to play a bit with the catcode of the <code>minus</code> sign since ConTeXt is apparently confused by this. In addition, you can't type the example found in [http://lilypond.org/doc/v2.10/Documentation/user/lilypond/Overview-of-text-markup-commands#index-g_t_0040code_007bfret_002ddiagram_007d-935 the Lilypond documentation] on its own because Lilypond won't accept a score with only markup (the fret diagram) and nothing else; you have to place the markup on the page.startluacode thirddata = thirddata or {}
All in all, something like this will work: -- create temp folder if missing if not lfs.isdir("\LILYTEMP") then lfs.mkdir("\LILYTEMP") end
<texcode> function thirddata.parselilypondfile(name) -- include all systems (pages) -- name is like \usemodule[LILYTEMP/mainfile-temp-lilypond]-21.pdf\starttext logs.report("LILYPOND","name='" .. name .. "'")\catcode`\ local scname = string.gsub(name, '%.pdf$', '-systems.count') local syco =11tonumber(io.loaddata(scname)) or 0
D chord: for nr = 1, syco do logs.report("LILYPOND","including system no." .. nr) context("\\setupfloats[location=right,frame=off]\\placefigure[none]{}{\\externalfigure[" .. string.gsub(name, '%.pdf$', '-' .. nr) .. "]}") end end\blankstopluacode
\startlilypondusemodule[filter]d'' ^ \markup defineexternalfilter[lilypond] [continue=yes, cache=yes, readcommand=\ParseLilypondFile, directory=\LILYTEMP/, output={ \fret-diagram #"s:0externalfilterbasefile.75;f:1;6pdf}, filtercommand={lilypond -x;5dbackend=eps -x;4dinclude-o;3eps-2fonts -1;2dno-3gs-3;1load-2fonts -2;o" }\stoplilypondLILYTEMP/\catcode`externalfilterbasefile" "\-=12externalfilterinputfile"}]
\stoptextsetuplayout[textwidth=6in] % matches line-width below</texcode>\definefontfeature[main][protrusion=quality, expansion=quality]\definefontfamily[mainface][rm][Adobe Jenson Pro][features=main]\setupbodyfont[mainface,13pt]\setupalign[hz,hanging]
If you find a real solution to the <code>catcode</code> problem, please document it here, or report it to the list -- [[User:Arthur|Arthur]]\starttext
== Developer's Corner ==\input zapf
For information how the integration works, please check the module code and its PDF version (both available from [[modules:t-lilypond|LilyPond on Modules]]). Unlike <tt>lilypond-book</tt> for LaTeX, the module does not use a precompiling step and thus can react to local width changes and the like, even if the LilyPond code is stored in a buffer.\startlilypond
Things that have not been implemented yet include:\layout{* indent=0\mm ragged-right = ##f}\paper {myStaffSize = #20 #(define fonts (make lilypond call back on ConTeXt for included TeX -pango-font-tree "Adobe Jenson Pro" "Myriad Pro" "Myriad Pro"(cf. [http://lsr.dsi.unimi.it/LSR/Item?id=107]myStaffSize 20)))* get information from LilyPond about the baseline, for runline-width=6\in music fragments* tell LilyPond how much space is left on the first page oddFooterMarkup=##f* check and probably work on proper multi-page music oddHeaderMarkup=##f bookTitleMarkup = ##f scoreTitleMarkup = ##f }melody = \relative c'' { \clef treble \key c \major* lots of features \time 4/4
To remember: a b c d* see [http://lilypond.org/doc/v2.11/Documentation/ LilyPond Docs]!}
--[[User:ChristopherCreutzig|Christopher Creutzig]] after ideas by [[User:Hraban|Hraban]]text = \lyricmode {Aaa Bee Cee Dee}
upper == Older Workarounds ==\relative c'' { \clef treble \key c \major \time 2/4
'''Beware: These relate to the old version of the module and older versions of LilyPond (earlier than 2.7)! Nowadays, LilyPond and epstopdf get called via texmfstart, that works without patching!''' a4 b c d}
lower === LilyPond is not found ===\relative c { \clef bass \key c \major \time 2/4
Calling lilypond from command line in Windows fails. (Seems like a bug in lilypond.) a2 c}
You have two options:\score {* modify the module, so that lilypond is called with the whole path ( <code>C:/prog/lilypond/usr/bin/lilypond</code> for example instead of \new Voice = "mel" { \autoBeamOff \melody } \new Lyrics \lyricsto mel \text \new PianoStaff <<code \new Staff = "upper" \upper \new Staff = "lower" \lower >lilypond</code> alone).* place a <code >lilypond.bat</code> somewhere in your search path, calling c:/prog/lilypond/usr/bin/lilypond %1 %2 %3 %4 %5 %6 %7 %8 %9 \layout { \context { \Staff \RemoveEmptyStaves } }}
Calling lilypond from ConTeXt via shell exit (write18) in MacOS X also fails, even if the shell's path is right. (Seems more like write18 wouldn't use the environment.) Modify the module (try <tt>which lilypond</tt> to get its path).\stoplilypond\input tufte
LilyPond 2.7.26 comes without a command line "version", at least in the MacOS X edition, i.e. the <tt>lilypond.sh\stoptext</tttexcode> script is missing.Here's it's relevant content:
#!/bin/sh ## where was the app installed? INSTALLDIR=/Applications if [ "$1" =Too many open files = "--print-appdir" ]; then echo "$INSTALLDIR/LilyPond.app/" exit 0 fi # where to put the output export LILYPOND_DESTDIR=`pwd` # run the program python "$INSTALLDIR/LilyPond.app/Contents/Resources/lilycall.py" \ "$INSTALLDIR/LilyPond.app/" $@
Save this as <tt>lilypond.sh</tt>, make it executable With bigger projects and symlink it the above setup you might run into a directory on your path"too many open files" errors, at least in older Linux, e.gOSX and other Unix-like OSes. chmod a+x lilypond.sh sudo ln -s lilypond.sh /usr/local/bin/lilypondAsk your shell about the open files maximum and set it higher:
=== LilyPond stops with an 'Unbound variable' error === $ ulimit -n 256 $ ulimit -S -n 2048
The [http://modules.contextgarden.net/t-lilypond LilyPond module] as of 2005-09-12 uses some commands in its header that work only with LilyPond 2.6 (at least no more with 2.7.25); replace "ly:parser-print-score" with "print-score-with-defaults" and "ly:music-scorify" with "scorify-music" for LilyPond 2.7 series.
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[[Category:Music]]
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