Re: Omitting specific symbols from key signatures

[Adam Good]

Thank you Torsten, unfortunately this doesn't satisfy the criteria of #3 request, working across transpositions. If I ask for:

\key c \KeySig

...it prints a ces in the key signature. Although irrelevant, the example I'm giving is much much simpler than my actual needs which involves key signatures for Turkish makams and microtonality. So far I'm only running across two makams that have this issue. Anyway, being able to solve my simple locrian example will show me the way.

Basically I want to suppress output of that one lonely accidental.

Thanks again!

Adam

On Tue, Oct 30, 2018 at 12:50 PM Torsten Hämmerle <address@hidden> wrote:

Hi Adam,

the KeySig you've defined is nothing but \locrian.

If you don't want the F# to be shown (that's the tonic in F# locrian), you
just need to define a ,FLAT for step 0 (the tonic), because this will lower
the tonic and thus eliminate the F# from your key signature.
That way, the F# will not be printed in the key signature, but it will show
up each time as an accidental in the music:

%%%%%
\version "2.18.2"
KeySig = #`((0 . ,FLAT)(1 . ,FLAT)(2 . ,FLAT)(3 . 0)(4 . ,FLAT)(5 . ,FLAT)(6
. ,FLAT))

\relative c' {
  \key fis \KeySig
  fis4 g a b c d e fis
}
%%%%%


An alternative solution without defining a custom key signature would be
abusing the \lydian mode and setting the tonic a half step lower: ;)

%%%%%
\relative c' {
  \key f \lydian
  fis4 g a b c d e fis
}
%%%%%

(This works because our custom key signature now has flats everywhere except
on step 3 and this is basically a shifted lydian mode which has just a sharp
on step 3).
Yes, that's confusing, but, after all, you can add a comment. That's the
good thing about text-based formats.

HTH,
Torsten




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