Re: fundamental problem with `\autoBeamOff`

[Aaron Hill]

On 2024-03-25 9:34 am, Werner LEMBERG wrote:
> Consider this small example.
>
> ```tex
> {
>   f'8 f' \autoBeamOff f' f'
>   f' f' f' f'
> }
> ```
>
> For me it was surprising to see that `\autoBeamOff` doesn't act
> immediately but rather two eighths later.  The documentation doesn't
> mention this, AFAICS, and I consider this behaviour rather
> counter-intuitive.
>
> Could this be fixed?


It appears that intentionally the `autoBeaming` property is not 
consulted when considering whether to end a auto-beam in progress.  
(There's a comment in the code for the engraver regarding this.  I have 
not dug through the code or mailing list archives to determine why 
`consider_end` does not consult `autoBeaming`.)

Using \noBeam should let you terminate the beam early:

%%%%
\version "2.25.13"

autoBeamOff = { <>\noBeam \autoBeamOff }

{
  f'8 f' \autoBeamOff f' f'
  f' f' \autoBeamOn f' f'
}
%%%%


-- Aaron Hill