Re: applying a tweak or callback to an \after-ed grob

[Kieren MacMillan]

Hi Harm and David,

Thank you!

>>    %% no need for second once, it's already in `hairpinWithCenteredText’

Yes… I’ve altered that now, so that hairpinWithCenteredText is a non-\once 
\override.
(Now that we have \temporary, \single, etc., I think I will make sure that all 
such functions in my library are non-\once, and then add syntactic sugar as 
appropriate.)

>>    \after 2 \single \hairpinPoco \< g1 g\!

> Which is more or less the point of having \single: being able to convert
> an override into a tweak when nothing else will do.


I clearly didn’t understand that, but this does exactly what I want it to — 
thank you.

For archive readers: The page 
http://lilypond.org/doc/v2.19/Documentation/learning/tweaking-methods does a 
pretty good job of explaining the purpose of \single (and other tweaking 
methods).

For developers/users: Should that page include a description of [the effect of] 
\temporary, and/or a link to 
<http://lilypond.org/doc/v2.19/Documentation/extending/intermediate-substitution-functions>
 (where there is such a description)?

Thanks,
Kieren.
________________________________

Kieren MacMillan, composer
‣ website: www.kierenmacmillan.info
‣ email: address@hidden