On Wed, 26 Apr 2023 at 08:35, Hans Aikema <hans.aik...@aikebah.net> wrote:
>
>
> On 26 Apr 2023, at 17:06, Mats Bengtsson <mat...@kth.se> wrote:
>
>
> On 2023-04-26 16:39, Michael Werner wrote:
>
> \version "2.25.4"
>
>
> \new Staff = "main" {
>
>
> \overrideTimeSignatureSettings
>
> 4/4 % timeSignatureFraction - i.e. the time signature
>
> 1/4 % baseMomentFraction - what note duration to base this on
>
> 1,1,1,1 % beatStructure - this is the beat pattern
>
> #'() % beamExceptions - needed to disable the defaults, or some
> such thing
>
>
> \new Voice {
>
> \time 4/4
>
>
> \relative c' {
>
> d4 d4. e8 e e
>
> }
>
> }
>
> }
>
>
> Unfortunately that doesn't answer the question, since then d4 d4 d8 d8 d8
> d8 will also be beamed by quarter notes. As far as I know the answer to
> David's question is that it cannot be obtained using the current support
> for automatic beams. The beam decisions is only taken based on the shortest
> duration encountered since the possible start of the current beam. A more
> advanced support would be needed to be able to specify more specific
> beaming patterns.
>
> /Mats
>
>
> I suspect that more advanced support is already there with the
> beamExceptions (which the should be specified as a non-empty a-list
>
>
> https://lilypond.org/doc/v2.24/Documentation/notation/beams#setting-automatic-beam-behavior
>
> but I've never experimented with it.
>
>
After trying various things with beamExceptions, it looks to me like
they're restricted to defining permissible endpoints for beams, but not
starting points. Perhaps someone can verify if this is true, and if it's
possible to change?
-David
