Re: help on note head, thanks

[Jeffery Shivers]

On Fri, Mar 3, 2017 at 10:14 AM, David Kastrup <address@hidden> wrote:
> Jinsong Zhao <address@hidden> writes:
>
>> On 2017/3/3 17:02, David Kastrup wrote:
>>> Jeffery Shivers <address@hidden> writes:
>>>
>>>> On Thu, Mar 2, 2017 at 9:48 PM, Jinsong Zhao <address@hidden> wrote:
>>>>> On 2017/3/3 10:35, Jeffery Shivers wrote:
>>>>>>
>>>>>> On Thu, Mar 2, 2017 at 9:24 PM, Jinsong Zhao <address@hidden> wrote:
>>>>>>>
>>>>>>> Hi there,
>>>>>>>
>>>>>>> In a violin score, I saw something similar to the following code, but 
>>>>>>> the
>>>>>>> second voice b4 was displayed as a triangle.
>>>>>>>
>>>>>>
>>>>>> Do you have a screenshot or small image you could attach which shows
>>>>>> the notehead you want? Was it definitely a triangle, by the way? Not a
>>>>>> diamond?
>>>>>
>>>>>
>>>>> I don't know that I could post image into a mailing list. Please find the
>>>>> attached small screenshot.
>>>>>
>>>>
>>>> Hm. I studied violin for twelve years and have no idea what that
>>>> means. It could mean some harmonic technique; maybe it is that
>>>> composer's (confusing) shorthand to playing a fifth artificial with b
>>>> pressed, f# touched, sounding an octave up from that. But it makes no
>>>> sense to write it that way, so must mean something else..
>>>
>>> I guess that this is a beginner's book and this indicates fingering the
>>> B3 in advance simultaneously with the F4♯ by pressing down on both with
>>> your middle finger.
>>>
>>
>> Yes, it's a score from a beginner's book. Thanks you very much for the
>> explanation. Now, the question. How to typeset it in lilypond to get
>> the same output?
>
> This particular instance can be fudged using
>
>
>
>
> This uses a visual whole note (to have the Stem omitted) with a duration
> scaled to zero and in palmMute NoteHead style.  Ugly (and the Midi will
> likely be unusable), but it should get the ledger line printed and the
> position indicated correctly.
>

Alternatively, something like:

== snip

specialNote = {
  \once \omit Stem
  \once \omit Flag
  \once \override NoteHead.stencil = #ly:text-interface::print
  \once \override NoteHead.text =
    \markup
    \concat {
      % adjust these as needed
        \with-dimensions #'(0 . 0) #'(0 . 0)
        \translate-scaled #'(-0.5 . 0)
        \hspace #-.25
      % replace `noteheads.s1sol` with whatever you need[1]
        \musicglyph #"noteheads.s1sol"
    }
}

mus = {
  <<
    { dis'16[
      fis' b ais] }
    \\
    { s16
      \specialNote b16 s16 s16 }
  >>
}

\score {
  \mus
}

== snip

[1] find a full list of available glyphs in "ps/encodingdefs.ps". Idk
if there is a test that engraves all of those or not, so you may be on
your own in terms of actually finding what you need in there.

> A smoother replacement would likely be a pitched rest (also gets the
> ledger line and position as needed) with the stencil replaced by the
> triangle.  That would be fine for Midi and also a better semantic match.
> But more work.  Takers?
>
> --
> David Kastrup
>



-- 

Jeffery Shivers
 jefferyshivers.com
 soundcloud.com/jefferyshivers