Re: Cross-staff slurs

[Jacques Menu]

Hello Jean,

Thanks a lot!

JM

> Le 19 avr. 2021 à 08:59, Jean Abou Samra <jean@abou-samra.fr> a écrit :
> 
> 
> Le 19/04/2021 à 07:47, Jacques Menu a écrit :
>> Hello folks,
>> 
>> MusicXML has the concept of a slur to a note in another staff, and 
>> MusicScore provides this feature.
>> The simple attempt, first attached image, doesn’t produce a satisfactory 
>> result.
>> 
>> Is there a way to obtain such a slur in LilyPond without setting control 
>> points manually, as is shown in https://lsr.di.unimi.it/LSR/Item?id=134 
>> <https://lsr.di.unimi.it/LSR/Item?id=134>, second attached image?
>> 
>> Thanks for your help!
>> 
>> JM
> 
> Hi Jacques,
> 
> LilyPond does support cross-staff slurs. In your example, it thinks the slur 
> is going to look ugly if crossing the staves, and chooses a less steep option.
> 
> You can increase the demerit for slurs with end points too far from the note 
> heads to force it to span the total vertical interval between the heads:
> 
> \new PianoStaff <<
>   \new Staff = "right" {
>     \override Slur.details.edge-attraction-factor = 1000
>     e'''2(
>     \change Staff = "left"
>     a4)
>     \change Staff = "right"
>     b''8 r |
>   }
>   \new Staff = "left" {
>     \clef bass
>     s1
>   }
> >>
> 
> See:
> 
> http://lilypond.org/doc/v2.22/Documentation/internals/slur_002dinterface
> 
> Cheers,
> Jean
>