Re: enharmonic problem with \transpose - should we modify it?

[Keith OHara]

Janek Warchoł <lemniskata.bernoullego <at> gmail.com> writes:

> Summary: { \key c \minor  \transpose gis as { es } } produces feses in
> output. I think it would be better if it outputted es.
> 

I have used `\transpose gis as` to change enharmonic spellings, so probably 
others have used it as well, so it should probably continue to function as 
it does.

\transpose does the theoretically correct thing in all cases except :

> when a
> passage like this { \key es \minor as' bes' des'' bes' ges' es' as' as' } is
> transposed, most flat notes aren't affected (because \transpose doesn't
> create triple flats), but some are - and intervals change, for example first
> one changes from major second to diminished third.
> 

because LilyPond does not have a way to display a triple flat, so a year ago
Neil made LilyPond automatically convert triple sharp/flats to their enharmonic
equivalent so at least something would be printed.

Probably the new modal transformations from Mike Ellis will provide what you 
want, Janek:
http://lists.gnu.org/archive/html/lilypond-devel/2011-01/msg00768.html
--
Keith