RE: Position chromatic notes in 1/3 note head size instead of 1/2

[Robert Mengual]

Hello Valentin,

By increasing the distance between lines it fits, yes, but that is not how this music notation was specified. They specify 1/3 notehead size vertical distance between chromatic notes.

My staff, for example, is defined as follows: 

\layout { \context {

  \Staff

  \override StaffSymbol.line-positions = #'(-5.67 -2.33 2.33 5.67)

}}

So no integer number in staffLineLayoutFunction will allow me to match my lines with the noteheads. This is why I think it would make sense to allow passing decimal numbers to staffLineLayoutFunction.

As an alternative, I tried setting manually NoteHead.Y-offset to decimals, but then I have the problem that the note position should be different depending on the clef...

Robert

---

De: Valentin Petzel
Enviado: Miércoles, 02 de Marzo de 2022 19:16
Para: lilypond-user@gnu.org; Robert Mengual
Asunto: Re: Position chromatic notes in 1/3 note head size instead of 1/2

Hello Robert,

mathematically 1/3 instead of 1/2 means 50% more, this 3*1.4 = 4.5 notes
should fit.

But the same thing should be doable by simply increasing the distance between
lines, like this:

<<
\new NoteNames { c d e f g a b c d e f g a }
\new Staff \with {
    \override StaffSymbol.line-positions = #'(-6 -3 0 3 6)
} \relative c' {
  c d e f g a b c d e f g a
}
>>

Am Mittwoch, 2. März 2022, 19:06:33 CET schrieb Robert Mengual:
> Hello Valentin, thanks for the response.
>
> That's not really what I want, instead of defining a new Staff (which I
> already did btw) I want to position the notes so that more noteheads fit in
> the same height.
>
> For example, let's take the height starting from the e bar to the b bar in
> treble. In the traditional notation, only three noteheads fit between this
> height (f g a). In this new notation, 4 noteheads should fit because the
> vertical distance between notes is 1/3 instead of 1/2.
>
> I hope I made things clearer,
>
> Robert
>
> ________________________________
> De: Valentin Petzel
> Enviado: Miércoles, 02 de Marzo de 2022 18:49
> Para: lilypond-user@gnu.org
> CC: Robert Mengual
> Asunto: Re: Position chromatic notes in 1/3 note head size instead of 1/2
>
> Hello Robert,
>
> I’m not exactly sure what you want to do. If you want to achieve the results
> from the screenshot maybe using StaffSymbol.line-positions is what you
> want.
>
> Cheers,
> Valentin
>
> Am Mittwoch, 2. März 2022, 18:22:25 CET schrieb Robert Mengual:
> > Hello everyone,
> >
> > I am trying to position the notes of my custom music notation as in the
> > screenshot.
> >
> > I tried using a custom callback for staffLineLayoutFunction. I thought it
> > was going to be enough, but it won't allow decimal numbers.
> >
> > Does anybody have any idea how I can implement this behaviour? Find
> > attached a Tiny.ly as well.
> >
> > Robert