> On 27 Sep 2020, at 20:20, David Kastrup <d...@gnu.org> wrote: > > Hans Åberg <haber...@telia.com> writes: > >>> On 27 Sep 2020, at 19:31, David Kastrup <d...@gnu.org> wrote: >>> >>> Hans Åberg <haber...@telia.com> writes: >>> >>>>> On 26 Sep 2020, at 18:04, Dan Eble <d...@faithful.be> wrote: >>>>> >>>>>> On Sep 26, 2020, at 09:41, Dan Eble <d...@faithful.be> wrote: >>>>>> >>>>>> On Sep 26, 2020, at 08:55, Werner LEMBERG <w...@gnu.org> wrote: >>>>>>> >>>>>>> >>>>>>> Despite Gould's “incorrect” verdict, here is an example from an old UE >>>>>>> edition of Liszt's “Liebestraum No. 1”, which demonstrates that ties >>>>>>> over clef changes *do* happen and make sense sometimes... >>>>>>> >>>>>>> I still think that LilyPond should support that, handling the tie like >>>>>>> a slur in this case. >>>>>> >>>>>> That's a very good example. It's hard to imagine any reasonable >>>>>> alternative. >>>>>> >>>>>> What kind of grob would an editor expect here? a Tie because it >>>>>> connects notes of the same pitch, or a Slur because it connects >>>>>> notes at different staff positions? (or something else?) >>>>> >>>>> I'll answer my own question. A tie from d♯ to e♭ generates a Tie >>>>> grob, so for consistency, this should be a Tie that looks like a >>>>> slur. >>>> >>>> The notes d♯ to e♭ have different pitches in the staff notation >>>> system, which cannot express E12 enharmonic equivalents, so this is >>>> slur. So it should be a slur that looks like slur. >>> >>> We are talking about a piano here. It has no different keys for d♯ and >>> e♭ and only a single manual. A slur even across the same pitch will be >>> executed with a separate keypress as opposed to a tie. >> >> If you look down the thread, there are two different questions, when >> expressing it in the staff notation as is, and when forcing E12 >> enharmonic equivalents onto it. >> >> And not all pianos are tuned in E12, as in the case of meantone >> tunings. > > I repeat: It has no different keys for d♯ and e♭ and only a single > manual. Yes, I know about historical split-key instruments but that is > not what a modern piano composer is writing for.
Both cases were discussed. For an orchestra they are not the same pitch, thus formally a slur.