Re: flats as sharps and sharp as flats

[Kieren MacMillan]

Hi Stefan,

> Is it possible to define another function, that shows an written "dis"
> as an "es" and vice versa?

The \transpose function already does this! Simply use the enharmonic  
transposition:

\version "2.12.2"
sharpMusic = \relative { cis' dis fis gis ais }
\score {
        <<
                \new Staff \sharpMusic
                \new Staff \transpose cis des \sharpMusic
        >>
}

Hope this helps!
Kieren.