[MEI-L] mup & lilypond et al.

Craig Sapp craigsapp at gmail.com
Tue Oct 29 18:14:53 CET 2013

Hi Everyone,

I had a report that the SVG image got totally dropped via at least one
mailing list/browser/mail program path, so attached in the SVG image from
my previous email in a ZIP attachment.


On 29 October 2013 09:40, Craig Sapp <craigsapp at gmail.com> wrote:

> Hi Sigfrid,
> Here is the result you desire, a high-quality SVG image (displayed inline
> depending on your mail reader/browser, otherwise see the .svg attachment):
> [image: Inline images 1]
> Generation of such an image could be automated, but probably too complex
> to deal with for a small project.  It would also involve CGI interfacing to
> the DOS version of SCORE via dosemu:
>    http://wiki.ccarh.org/wiki/Dosemu
> Also, you would need to use Wine
> http://en.wikipedia.org/wiki/Wine_(software) to run a Windows
> command-line program to automatically adjust beam angles/heights using a
> program called BEAM written by Tom Brodhead:
>    http://home.comcast.net/~tom.brodhead
> And a ruby script to convert SCORE EPS files into SVG:
>     https://github.com/th-we/seps2svg
> For full automation, three manual operations were needed to generate the
> above example:
> (1) layout -- I copied the layout that you gave.  Automated layout in
> SCORE is possible, but that would add moderatly to the complexity.
> (2) vertical placement of measure tags.  I put the tags at vertical step
> 15 in SCORE, and adjust them higher by hand when they collided with the
> music.  This would be relatively simple to automate.
> (3) note offsets such as in measure 7 LH would need to be automated.  Also
> relatively simple.
> The most difficult measure to automatically typeset would be measure 9
> (first full measure of the second system).  Presumably you chose to do the
> cross staff beaming of notes rather than MUP?  And would this instruction
> be encoded in the MEI data?  MUP had two difficulties in this measure: (1)
> attaching notes correctly to the beam, and (2) raising the rests to
> accommodate the notes.  This will cause problems for most all automatic
> typesetting programs.
> Lilypond will give slightly higher-quality results than MUP but not by a
> large amount.  The main advantage of lilypond is that it can handle a wide
> range of musical symbols as well as be able to handle slightly more complex
> music than MUP can.  Lilypond is reasonably fast but probably slower than
> MUP.  Lilypond can output SVG images.  MUP can also be used to generate SVG
> images by sending the PostScript output through GhostScript or inkscape.
>  Both lilypond and MUP SVG output will be very messy looking in terms of
> the code because both of them do not calculate the SVG data directly, but
> send through an external library/program.
> Abcm2ps (ABC+) will give a slightly lower quality result.  The cross-staff
> notation of measure 9 cannot be handled by ABC+ or abcm2ps (as far as I am
> aware).  The main advantage of abcm2ps printing (via a GCI interface) is
> that it is very fast (implemented in C).  I don't know the quality/behavior
> of the JavaScript interface to abc. Using abcm2ps (http://moinejf.free.fr)
> would be similar to MUP, and SVG output could be done through GhostScript
> or inkscape.
> Vexflow I cannot imagine can handle music of this complexity.  Someone who
> uses vexflow can post this example generated by vexflow to prove me wrong
> :-).
> -=+Craig
> On 29 October 2013 05:26, Sigfrid Lundberg <slu at kb.dk> wrote:
> >
> > I've been working on a project which involves automatic generation of
> scores from an eXist native XML database containing musical segments. I've
> coded a MEI generator in the XQuery language, and the result is then
> translated into mup and from there to either PDF or MIDI. I'm working in
> MEI 2010-05 but are looking for a way forward to more modern MEI and higher
> quality PDF or even better SVG.
> >
> > Please find generated xml, pdf and midi attached (if it survives the
> listserv, they are miniscule and shouldn't hur bandwidth)
> >
> > Suggestions. Should I go for MEI 2013, and I suppose Lilypond? Any other
> ideas? The system has to run batch server side on a Linux server.
> >
> > Any opinions?
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