Re: wah-wah-effect

[Alexander Kobel]

Stefan Thomas wrote:
> Dear David,
> thanks for Your help.
> I found out, that I can get a dashed hairpin with   \once \override 
> Hairpin #'style = #'dashed-line
> What I would like to do is getting a + and an "o" at the beginning and 
> the end of the hairpin.
> The "o" is easy to get with
>
>   \override Hairpin #'circled-tip = ##t
>
> But how I can do it with the "+"-sign?


Hi, Stefan,

you could try to experiment with Hairpin #'stencil.  I imagine combining 
the usual stencil with a "+" markup at the right side should work.
Have a look for the ly:stencil-combine-at-edge and 
ly:text-interface::interpret-markup (other possibilities exist, of 
course; you can draw a "+" or a circle outside of a text block, but this 
looks quite easy) functions.  You'll find examples for both functions 
here on the list, or in the LSR.


Cheers,
Alexander