Hello Jan-Peter,
Thanks, that allows cross-selection between source code and resulting image.
JM
> Le 4 oct. 2018 à 20:49, Jan-Peter Voigt <jp.vo...@gmx.de> a écrit :
>
> Hello,
>
> an engraver can set the duration-log property conditionally as a tweak:
>
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> \version "2.19.82"
>
> \layout {
> \context {
> \Voice
> \consists #(make-engraver
> (listeners
> ((note-event engraver event)
> (let ((durlog (ly:duration-log (ly:event-property
> event 'duration))))
> (if (> durlog 1) (ly:event-set-property! event
> 'tweaks '(((NoteHead . duration-log) . 1)) ))
> ))))
> }
> }
>
> \relative d {
> \clef bass \key d \major
> \time 3/2
> d1. | e1. | fis2 b,8*2[ cis d b] |
> e1. | fis2. gis8*2 ais2 | b2 b,8*2 cis d2 |
> e2. d8*2 cis2
> }
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>
> HTH
> Jan-Peter
>
>
> Am 04.10.2018 um 20:20 schrieb Pierre Perol-Schneider:
>> Hi All,
>> Another option:
>>
>> \version "2.19.82"
>>
>> \relative d {
>> \clef bass \key d \major
>> \time 3/2
>> d1. | e1.
>> \override NoteHead.duration-log = #1
>> | fis2 b,8*2[ cis d b] |
>> \once\revert NoteHead.duration-log
>> e1. | fis2. gis8*2 ais2 | b2 b,8*2 cis d2 |
>> e2. d8*2 cis2
>> }
>>
>> Cheers,
>> Pierre
>>
>> Le jeu. 4 oct. 2018 à 14:32, Jacques Menu <imj-muz...@bluewin.ch
>> <mailto:imj-muz...@bluewin.ch <mailto:imj-muz...@bluewin.ch>>> a écrit :
>>
>> Hello Graham & Aaron,
>>
>> Thanks, both your solutions work fine. Lily is really great!
>>
>> Avoiding to use multiplying factors as in b,8*2 has the advantage
>> that Frescobaldi can select the code from the glyphs and vice-versa
>> alright.
>>
>> A nice day!
>>
>> JM
>>
>>> Le 4 oct. 2018 à 13:29, Aaron Hill <lilyp...@hillvisions.com
>>> <mailto:lilyp...@hillvisions.com>
>>> <mailto:lilyp...@hillvisions.com <mailto:lilyp...@hillvisions.com>>> a
>>> écrit :
>>>
>>> On 2018-10-04 2:09 am, Jacques Menu wrote:
>>>> Hello folks,
>>>> I’ve found this in Charpentier’s Te Deum, as engraved by the
>>>> Centre de Musique Baroque de Versailles, which I had never seen
>>>> before:
>>>> It’s quite readable indeed, maybe more than using the modern
>>>> notation with quarters, and I’ve wondered if there a way to obtain
>>>> that with Lily.
>>>
>>> Simplest option is to use a note scaling fraction:
>>>
>>> d2*1/2
>>>
>>> This produces a "half note" but it has been scaled in half so it
>>> only lasts as long as a quarter note. The note head, however,
>>> will still render as a half.
>>>
>>> The problem is that this does not let you do beaming:
>>>
>>> d2*1/2[ e f g]
>>>
>>> You will get an error because half notes do not support beams.
>>>
>>> One way to get around this is to use something like an eighth note
>>> (which does support beams) and then scale it so it lasts as long
>>> as a quarter (which is what the music in question needs):
>>>
>>> d8*2[ e f g]
>>>
>>> But now we are back at the problem where the note heads are
>>> showing as solid. Graham has provided a way to force the note
>>> head to render however you want. Allow me to provide an alternative:
>>>
>>> %%%%
>>> \version "2.19.82"
>>>
>>> \relative d {
>>> \clef bass \key d \major
>>> \time 3/2
>>> \override NoteHead.stencil = #(lambda (grob)
>>> (let* ((dur (ly:event-property (event-cause grob) 'duration))
>>> (dur? (and (eqv? (ly:duration-log dur) 3) (eqv?
>>> (ly:duration-scale dur) 2))))
>>> (if dur? (ly:grob-set-property! grob 'text (markup
>>> #:musicglyph "noteheads.s1")))
>>> (if dur? ly:text-interface::print ly:note-head::print)))
>>> d1. | e1. | fis2 b,8*2[ cis d b] |
>>> e1. | fis2. gis8*2 ais2 | b2 b,8*2 cis d2 |
>>> e2. d8*2 cis2
>>> }
>>> %%%%
>>>
>>> What I am doing here is providing a function that checks to see if
>>> you are using the 8*2 duration specifically and only then
>>> adjusting the way the note head is displayed.
>>>
>>> -- Aaron Hill
>>>
>
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