I really appreciate your work on that! It's also a very instructive example
to emulate, I imagine.
One quick question -- is this "lattice" idea I'm doing (maintaining a
separate voice with nothing but tempo and spaces that gets munged into the
parts) a bad idea for any reason? Would I ever run into issues with
spacing/direction, possibly run out of available voices, etc.? From the
documentation about `\voices` the count appears to be open-ended and the
configuration is pretty straightforward.
Does anyone else do this? Or do most people just repeat tempo/text markings
in all of the parts?
Thanks again!
Tom
On Tue, Jul 23, 2024 at 6:32 PM Thomas Morley <thomasmorle...@gmail.com>
wrote:
> Am Di., 23. Juli 2024 um 23:52 Uhr schrieb Tom Brennan <tjb1...@gmail.com
> >:
> >
> > Hi all
> >
> > I'm notating a sonata for a cello and piano, and I would like to produce
> three "artifacts" (products?) from this:
> >
> > 1. A solo cello part (a typical single staff representation)
> > 2. A "study score" where all staves are equivalent sizes
> > 3. An accompaniment part for the piano, where the cello is above in a
> smaller staff
> >
> > Now, the problem I'm facing is that there are plenty of "accel." and
> "rit." marks with lines/spanners that I would like to be treated like tempo
> markings, so that they are presented in the following ways:
> >
> > 1. Normally for the solo cello part
> > 2. Only above the entire system in the "study score" product
> > 3. Above both the piano and the solo part in the "accompaniment" product
> >
> > The way I have designed the music input is like:
> >
> > ```
> > lattice = { s1 \tempo "Andante" 4 = 72 | s1 }
> > cello = << \lattice \relative c { a4 b c2 | d1 } >>
> > left = << \lattice { ...some music... } >>
> > right = << \latttice { ... } >>
> > ```
> >
> > i.e., so that the tempo lives in its own spaced-out voice, which
> provides the tempo to the rest of the staves but doesn't have its own staff
> to print. This seems to work, but I'm missing some key knowledge about how
> to handle the above scenarios. In particular, I don't know how to
> >
> > 1. treat a tempo marking and/or textmark as a spanner, so that it can
> have a dotted connecting line between tempo changes
> > 2. toggle these tempo changes based on the requirements above --
> sometimes only above the whole system, sometimes above the grand staff and
> the cello part (but not the left hand)
> >
> > I haven't been able to find the right documentation for this -- it seems
> like the only way to use a spanner is within a particular staff. Perhaps my
> approach is completely wrong, and I would love to know the best approach. I
> imagine this has to be a common (and hence solved) problem.
> >
> > Thanks
> > Tom
>
> Tempo-spanners are not yet implemented.
>
> Though we have an issue for it:
> https://gitlab.com/lilypond/lilypond/-/issues/3176
> You'll find a workaround there:
> https://gitlab.com/lilypond/lilypond/-/issues/3176#note_1277019697
>
> Furthermore I tried a proper implementation, see:
> https://gitlab.com/lilypond/lilypond/-/merge_requests/2256
> Though, a problem arises as soon as the relevant engravers are moved
> around. This is unsolved...
>
> Anyway, you may use the workaround from the issue or grap the code
> from the MR, in most cases it will work.
> Though, no garantee...
>
> Cheers,
> Harm
>
