If you use the \partCombineChords command in one of the voices (as in the
snippet I sent with last mail) it should override the default behavior of
partCombine and work without tricks or problems. Did you try it?
> 1 juli 2021 kl. 17:44 skrev Dinh Hoang Tu <dhoan...@gmail.com>:
>
> Hello Leo,
>
> Thanks for your explanation. Got your point, totally agree it should not
> combine when 2 voices are identical, otherwise it's confusing: cannot
> distinguish 2 voices.
> But when I use different font-sizes to distinguish 2 voices, I can only
> combine them when 2 voices are on same side of one another.
> If 2nd voice goes both upper and lower than 1st one, I cannot combine them.
>
> I found a trick, not nice, but at least works for this case: skip exceptional
> note of 2nd voice, and render it on 1st voice with tweak
> (I know this won't work if baritone has a separate lyrics, and here midi is
> not correct either. Fortunately these are not my case ^^)
>
> \version "2.22.1"
> localFontSize =
> #(define-music-function (font-size music) (number? ly:music?)
> (for-some-music
> (lambda (m)
> (if (music-is-of-type? m 'rhythmic-event)
> (begin
> (set! (ly:music-property m 'tweaks)
> (cons `(font-size . ,font-size)
> (ly:music-property m 'tweaks)))
> #t)
> #f))
> music)
> music)
>
> soprano = { f'4 g'4 a'4 b'4 c''2 }
> basso = { d'4 e' f'' g' a'2 }
> alto = { d'4 e' \stemUp f'' g' a'2 }
> tenor = { d'4 e' f'' g' a'2 }
> \new Score { \new Staff << \partCombine \soprano \basso >> } % correct but
> not expected
> \new Score { \new Staff << \partCombine \soprano \alto >> } % expected,
> without tweak, can combine but cannot confusing
> \new Score { \new Staff << \partCombine \soprano \localFontSize -3 \tenor >>
> } % distinguish 2 voices, but not combined
>
> mezzo = { f'4 g'4 <a' \tweak font-size #-3 f''>4 b'4 c''2 }
> baritone = { d'4 e' \skip 4 g' a'2 }
> \new Score { \new Staff << \partCombine \mezzo \localFontSize -3 \baritone >>
> } % trick
>
> Thanks to all.
> Have a good day.
>
> Tu'
>
>> On Thu, 1 Jul 2021 at 16:07, Leo Correia de Verdier
>> <leo.correia.de.verd...@gmail.com> wrote:
>> As a more general tip: if you want all stems to be pointing up you can
>> specify that on document or score level in a layout block, like
>>
>> %%%%
>> \layout {
>> \context {
>> \Voice
>> \override Stem.direction = #UP
>> }}
>> %%%%
>>
>> Or on a staff level in \with statements, like
>>
>> %%%%
>> \new Staff
>> \with { \stemUp }
>> ### music goes here
>> %%%%
>>
>> > 1 juli 2021 kl. 10:54 skrev Leo Correia de Verdier
>> > <leo.correia.de.verd...@gmail.com>:
>> >
>> > This is the intended behavior of partCombine. In the usual use case, with
>> > the same notehead size you still want to be able to follow each voice, so
>> > partCombine doesn’t merge them into chords when they’re crossed. (This is
>> > obscured in your first example because you are using \stemUp there,
>> > otherwise you would see the stems indicating the voicing).
>> >
>> > Anyway you can easily override this behavior by using partCombineChords,
>> > like
>> > …
>> > %%%%
>> > basso = { \partCombineChords d'4 e' \stemUp f'' g' a'2 }
>> > %%%%
>> > …
>> > HTH
>> > /Leo
>> >
>> >> 1 juli 2021 kl. 06:52 skrev Dinh Hoang Tu <dhoan...@gmail.com>:
>> >>
>> >> Sorry for short description in my last email.
>> >> I mean when 2nd voice has notes going upper and lower than 1st voice,
>> >> \partCombine won't combine 2 notes.
>> >> There is a gap between 2 stems, as in attached image.
>> >>
>> >> Many thanks,
>> >> Tu'
>> >>
>> >> On Thu, 1 Jul 2021 at 09:35, Dinh Hoang Tu <dhoan...@gmail.com> wrote:
>> >> Hello Jean and all,
>> >>
>> >> I would love to contribute if I can :)
>> >>
>> >> Using this in one music sheet, if 2nd voice has notes going upper and
>> >> lower than 1st voice, \partCombine will not work.
>> >>
>> >> \version "2.22.1"
>> >> localFontSize =
>> >> #(define-music-function (font-size music) (number? ly:music?)
>> >> (for-some-music
>> >> (lambda (m)
>> >> (if (music-is-of-type? m 'rhythmic-event)
>> >> (begin
>> >> (set! (ly:music-property m 'tweaks)
>> >> (cons `(font-size . ,font-size)
>> >> (ly:music-property m 'tweaks)))
>> >> #t)
>> >> #f))
>> >> music)
>> >> music)
>> >> soprano = { f'4 g'4 a'4 b'4 c''2 }
>> >> alto = { d'4 e' \stemUp f'' g' a'2 }
>> >> basso = { d'4 e' \stemUp f'' g' a'2 }
>> >> tenor = { d'4 e' \stemUp \tweak font-size #-3 f'' g' a'2 }
>> >> \new Score { \new Staff << \partCombine \soprano \alto >> }
>> >> \new Score { \new Staff << \partCombine \soprano \localFontSize -3 \basso
>> >> >> }
>> >> \new Score { \new Staff << \partCombine \soprano \tenor >> }
>> >>
>> >> Many thanks again to any help.
>> >>
>> >> Best,
>> >> Tu'
>> >>
>> >> On Thu, 1 Jul 2021 at 04:00, Jean Abou Samra <j...@abou-samra.fr> wrote:
>> >>> Le 30/06/2021 16:47, Dinh Hoang Tu <dhoan...@gmail.com> a écrit :
>> >>>
>> >>>
>> >>> Hello Jean, Xavier,
>> >>>
>> >>> I think these music functions are useful enough to be integrated into
>> >>> Lilypond itself.
>> >>> I put them in my local music-functions-init.ly for personal use.
>> >>> But it will be helpful for Lilypond users, including myself, to have
>> >>> these handy features by default.
>> >>>
>> >>> Thank you and have a good day.
>> >>>
>> >>> Tu'
>> >>
>> >> Hello,
>> >>
>> >> Actually this particular music function is rather hacky. It only applies
>> >> to notes and rests (not articulations or dynamics) and would fail with
>> >> things like quoted music or events inserted via the edition engraver. In
>> >> summary: it is not mature enough to be integrated in the core right away.
>> >>
>> >> As described in my previous email, one of the projects on my stack would
>> >> make \override just work as expected, so I would prioritize working on
>> >> this.
>> >>
>> >> Best regards,
>> >> Jean
>> >
>>
> <partcombine-tweak-trick.png>
