Re: proposal: second style for quartertone accidentals

[Juergen Reuter]

Hi, all!

Please note that we already have a style property for Accidental grobs. 
For example, for yielding ancient notation accidentals, you may say:

\override Accidental #'style = #'vaticana

Hence, the natural way is to introduce another style for 
different microtonal glyphs.  They are not present in standard western 
europe ancient notation and therefore do not collide with ancient 
accidental styles.  Hence, it is natural to introduce a new Accidental 
style, say, for example:

\override Accidental #'style = #'arrowed

or maybe even better

\override Accidental #'style = #'default-arrowed

to indicate that the non-microtonal accidentals are still to be taken 
from the default font, i.e. default and default-arrowed only differ in 
microtonal glyphs.

Unfortunately, the code for checking and handling the Accidental style 
property is still hardcoded in lily/accidental.cc in method

string
Accidental_interface::get_fontcharname (string style, int alteration)

rather than being handled at runtime through scheme code, as is done with 
notehead style in the scheme function note-head::calc-glyph-name in file 
scm/output-lib.scm.

The input syntax ("aeh", "aesih", "gisih", etc.) should probably be 
independent from the above selection of glyphs, as we usually try to 
strictly separate musical content and engraving style.  Considering this 
principle, maybe the right thing is -- similarly to including proper 
internationalized notenames -- the user to \include his/her favourite 
naming scheme at the beginning of the user's .ly file.

Greetings,
Juergen


On Sat, 27 Jan 2007, Trevor Ba�~Ma wrote:

> On 1/27/07, Orm Finnendahl <address@hidden> wrote:
> > Am 27. Januar 2007, 12:06 Uhr (-0600) schrieb Trevor Bača:
> > >
> > > Question: would it be possible to have access to *both* sets of
> > > glyphs? It seems to me that I've seen both types of glyphs mixed
> > > together in single scores; usually the existing quartertone glyphs
> > > show exact quartertone alterations while the arrowed glyphs show
> > > approximate alterations.
> > >
> >
> > Well, my proposal meant to be completely backwards compatible. I
> > thought about something similar to the "notehead-style" property like
> > saying
> >
> > \override #'accidental-style = "arrowed"
> >
> > for getting the arrowed accidentals and
> >
> > \revert #'accidental-style
> >
> > for switching back.
>
> Ah, OK. I very much vote yes. I've wanted the arrowed glyphs for quite
> some time and would like to see them as part of the standard
> distribution.