Re: Faulty extra beam with manual beam and cross-staff stems

I can see "\autoBeamOff" pretty clearly here, which was the first link 
found from googling "lilypond cross-staff stems"

https://lilypond.org/doc/v2.25/Documentation/snippets/staff-notation_003a-cross-staff-stems

-will

On 8/1/23 15:22, Ole V. Villumsen via bug-lilypond wrote:
> Hi Jean,
> indeed. I retract my bug report.
> Your solution works in the case where I specify \crossStaff in the lower staff (or both) and, as you say, the manual beams only in the upper staff.
> And no, this is pretty far from perfect and could also benefit from being made clear in the NR.
> Cheers,
> Ole
>
> Sent with Proton Mail secure email.
>
> ------- Original Message -------
> On Tuesday, August 1st, 2023 at 20:46, Jean Abou Samra<[email protected]>  wrote:
>
>
>> Le mardi 01 août 2023 à 18:34 +0000, Ole V. Villumsen via bug-lilypond a écrit :
>>
>>> % Manual beams and cross-staff stems don’t seem to work together.
>>> % Expected result: Shared stems across staves; beams above notes in upper staff only.
>>>
>>> % I have tried all possible combinations of specifying beams and \crossStaff in the
>>> % upper staff, the lower one and both. I always get unwanted beams in the lower staff.
>>
>> You should add \autoBeamOff in the lower staff, and remove the manual beams there.
>>
>> \version "2.25.7"
>>
>>
>> \layout {
>> \context {
>> \PianoStaff
>> \consists "Span_stem_engraver"
>> }
>> }
>>
>> \new PianoStaff <<
>> \new Staff \relative {
>> r8 e'[ e] r
>> r e e r |
>> r e[ e] r
>> r e[ e] r |
>> r e e r
>> r e[ e] r |
>> r e[ e] r
>> r e e r |
>> r e[ e] r
>> r2 |
>> }
>> \new Staff \relative {
>> \clef bass
>> \stemUp
>> \autoBeamOff
>> \crossStaff {
>> r8 g g r
>> r g g r |
>> r g g r
>> r g g r |
>> r g g r
>> r g g r |
>> r g g r
>> r g g r |
>> r g g r
>> r2 |
>> }
>> }
>>
>>
>>
>>
>> \crossStaff requires an explicit \autoBeamOff. I'm not saying that this is
>> the perfect user interface, but there is no bug here.
>>
>> Jean

-- 
+ ------------------------------------------- +
|   William Rehwinkel - Oberlin College and   |
|                          Conservatory '24   |
|[email protected]          |
| PGP key:                                    |
|https://ftp.williamrehwinkel.net/pubkey.txt  |
+ ------------------------------------------- +