Re: How to change TabNoteHead

[Rachael Thomas Carlson]

On Saturday, July 06, 2013 10:25:54 PM Thomas Morley wrote:
> 2013/7/6 Rachael Thomas Carlson 
<address@hidden>:
> [...]
> 
> > Quick question: could you direct me to a resource that could tell 
me
> > about this information and these functions?
> 
> Well, I can't answer quick or short.
> 
> There is no special or single resource for these functions. I wrote 
them ad
> hoc. (Though, for my own purpose I did some much more complex 
overrides for
> TabNoteHead 'stencil before. That helps. :) )
> 
> If you want to learn how to do it yourself, the "Extending Manual" and
> the "Internals Manual" will become your friends.
> 
> Looking at
> http://lilypond.org/doc/v2.16/Documentation/extending/simple-substitution-fu
> nctions and following the link
> http://lilypond.org/doc/v2.16/Documentation/notation/substitution-function-e
> xamples you'll find that \newTabNoteHead and \tweakTabNoteHead 
are
> substitution-functions as described there.
> Ok, you need to know the difference of \tweak and \override. IIRC,
> it's explained in the NR.
> ( \tweak is more difficult to understand. Though David Kastrup put
> some serious work on it. You'll probably see the advantages once you
> have upgraded to the hopefully coming soon new stable.)
> 
> The "Internals" mention that TabNoteHead supports the text-
interface:
> http://lilypond.org/doc/v2.16/Documentation/internals/tabnotehead
> (scroll down)
> 
> Some scheme/guile kowledge is useful.
> There is a scheme-tutorial in "Extending".
> http://lilypond.org/doc/v2.16/Documentation/extending-big-page#scheme-tutori
> al And we have the 'scheme-sandbox' for experiments.
> Let me say, that for first succesfull steps into the world of
> custom-definitions and functions the needed amount of scheme-
knowledge
> is very low.
> At some point of time you probably may notice that this little
> tutorial is not enough for advanced codings.
> Though there are several tutorials available online.
> (I've  a copy of the guile-manual downloaded in case I need to work
> offline.)
> 
> Studying code-examples is very helpful:
> Posts on this list.
> LSR-snippets
> Our source-code in /ly and /scm
> 
> 
> And you need to practise what you've learned.
> _Best_ practise is trying to answer all kind of user-requests. ;)
> 
> 
> Hope that helps a bit,
>   Harm

I think that this will help quite a bit!  Thank you very much for your time 
and consideration.

Rachael