Re: Rotating/grouping grobs for microtonal accidentals

[Torsten Anders]

On Mar 28, 2008, at 8:58 PM, Torsten Anders wrote:
> I would like to define a microtonal notation with alteration  
> fractions (cf. http://lilypond.org/doc/v2.11/Documentation/topdocs/ 
> NEWS.html) -- thanks for providing this feature! Everything works  
> great.
>
> My only problem is the creation of suitable accidentals. I need  
> four additional signs: a comma up (/), a comma down (\), and a  
> combination of these signs with the standard accidentals (#\ and  
> b/). I figure I could use something like "scripts.lvarcomma" for a  
> comma up. For a comma down, however, I need to rotate this sign or  
> "scripts.rvarcomma". Moreover, I would like to group my commas with  
> the common accidentals. How can I rotate and group feta font  
> symbols which I want to add to the list of accidentals.
>
> % code does not work, should only clarify problem
> myGlyphs = #'((1 . "accidentals.doublesharp")
>         [...]
>        (1/6 . "scripts.rvarcomma")
>        (0 . "accidentals.natural")
>         ;; how can I rotate a symbol?
>        (1/6 . (rotate "scripts.lvarcomma"))
>         [...]
>        )

Alternatively, is it perhaps possible to use another font (e.g.,  
TrueType, or some PostScript font) for the accidentals?

Thank you!

Best
Torsten

--
Torsten Anders
Interdisciplinary Centre for Computer Music Research
University of Plymouth
Office: +44-1752-233667
Private: +44-1752-558917
http://strasheela.sourceforge.net
http://www.torsten-anders.de