Re: force accidentals

[Stephen]

Mehmet a ecrit:
> I beg your pardon if I did not express myself as well as a native English
speaking person.>

I felt unusually confident I knew what you really meant because I have one 
of the Universal Editions you were talking about as a reference and we had 
discussed it a little further. Your english is really very good.

> The function is very useful and it must be uploaded at the code snippets.>

I am having trouble with it when I put it in a PianoStaff.

> Please quote the message to which your replying, in order to bring some
context to the discussion>

I am trying, but it does not happen automatically because I am not subscibed 
to user-lilypond only lilypond-devel.

> then engine compares note alterations with the
key signature, which contains only non-existant alterations.>

When I place the functions inside a PianoStaff, it prints a key signature 
unfortunately.

Skipping the explanation, I'll just attach the example I made if you don't 
mind.

The KeySignature print-function override only occurs after the line breaks 
are set. Removing the engraver nullifies the function entirely.

I am wondering if there is a way to override the print-function before 
line-breaking? Perhaps in the layout block. Or is there a way to get the 
note alterations we want without creating a key signature. I already 
experimented with the pitch-alist to no avail. How does "tonic 
(ly:make-pitch -1 4 0)" work? I there something we can do there to stop 
printing the key signature? I think this is the most staight-forward way to 
manipulate the accidetal_engraver.cc to do what we want without re-writing 
it, but can it be done without creating a real key signature at all?

Alternatively, perhaps I don't understand where to place the function. Or 
perhaps there might be a way to change the context of the function? Maybe 
just the right context would put it outside the scope of printing the 
keysignature while still affecting the notes. Anyway, it is a nice function.

Check out atonicKey.ly to see what I am talking about.

By the way, the error messages also stopped once it started to print a key 
signature.

Stephen

atonicKey.ly
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