Apologies for resending -- I sent this a few hours ago but I don't see it
on gmane, or in the gnu.org archive either.

Actually the manual answers question #1 -- I should be able to use the
prologue header argument for that. And I can already do #2 (included just
to outline the desired behavior completely).

I haven't found anything in the manual explaining how to run a shell
command on the output file from LilyPond execution. That's really the
crucial one -- it makes no sense to embed an A4 sized image into a beamer
frame...

hjh

---------- Forwarded message ----------
From: "James Harkins" <jamshark70@dewdrop-world.net>
Date: Nov 4, 2013 1:44 PM
Subject: ob-lilypond: pre- and post-processing of source blocks
To: "orgmode" <emacs-orgmode@gnu.org>
Cc:

> I would like to be able to do the following with ob-lilypond (basic mode):
>
> 1. Wrap the source block in pre- and/or post-strings (specifically to add
"\header { tagline = ##f }" before the music expressions).
>
> 2. Have lilypond compile the block.
>
> 3. Run "convert -trim" on the resulting png. (Haven't figured out how to
use eps output with xelatex.)
>
> Is this at all feasible? If not, where would I stick this stuff into the
orgmode source?
>
> hjh