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Re: Documentation missing for extra \header fields available for customi

From: Simon Albrecht
Subject: Re: Documentation missing for extra \header fields available for customizing PDF metadata
Date: Mon, 10 Aug 2015 17:04:52 +0200
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Am 08.08.2015 um 11:59 schrieb Henning Hraban Ramm:
Am 2015-08-08 um 14:53 schrieb Heikki Tauriainen <address@hidden>:

While examining the source code on how \header blocks are used to
extract information for PDF metadata (to implement the enhancement
#4539), I discovered that LilyPond actually supports quite an extensive
(optional) mechanism for customizing PDF metadata independently of the
information usually specified in the fields (title, subtitle, composer
etc.) of a \header block, through the use of extra \header fields.
However, I can't find any mention of this customization mechanism, nor
examples of using any of the extra fields, in any of the current
(v2.19.24) manuals.
There’s also a list of header fields that are used by the Mutopia project, see 
That’s a Mutopia policy and not a feature of Lilypond.
An updated documentation could point at that, too.
There is a section explaining custom header fields, referenced by \fromproperty. We might extend this section to also speak about processing through external applications, as in building Mutopia.

Yours, Simon

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