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Re: Autobeaming overrides

From: Trevor Daniels
Subject: Re: Autobeaming overrides
Date: Sun, 19 Oct 2008 11:47:22 +0100

David Bobroff Sunday, October 19, 2008 11:35 AM

Actually I was looking at the 2.11 docs. I even tried refreshing and it was still the same. Perhaps that's due to viewing the online docs at rather than from the latest source.

Yes, that's the reason. The docs at
are more recent, and contain better wording, but the
precise words I mentioned I added in response to your
mail and are still in my local git repository.


In any event I applaud the new wording and I thank you for your attention to that detail.


Trevor Daniels wrote:
Thanks David

I think the words you quote are from the 2.10 docs.
The wording in the 2.11 docs will be:

"If any unexpected beam behavior occurs, check the default automatic
beam settings in ‘scm/auto-beam.scm’ for possible interference,
because the beam endings defined there will still apply in addition
to your own.  Any unwanted or conflicting default endings must be
reverted for your time signature(s).

"Existing auto-beam rules are removed by using" [here follows an example]

Hope that's better.


----- Original Message ----- From: "David Bobroff" <address@hidden>
To: "Trevor Daniels" <address@hidden>
Cc: "Lilypond-User List" <address@hidden>; "Lily-Devel List" <address@hidden>
Sent: Sunday, October 19, 2008 10:16 AM
Subject: Re: Autobeaming overrides

I don't have an answer to your question but I do have a request regarding this section of the manual. In section 1.2.4 Beams/Setting automatic beam behavior, there is the statement:

Note that the default auto-beaming rules are specified in ‘scm/auto-beam.scm’, so you can revert rules that you did not explicitly create.

I've long felt that this wording should be more explicit. Maybe something like:

Note that the default auto-beaming rules are specified in ‘scm/auto-beam.scm’. When constructing auto-beaming rules of your own it is necessary to specifically revert any default rule that is contrary to your new rule.

Maybe you've got a better phrasing for it.


Trevor Daniels wrote:
I'm putting the finishing touches to the Rhythm section of the Notation Reference and would like some help.

The usual override for modifying the automatic beaming rhythm specifies the ending beat of the beam:

#(override-auto-beam-setting '(end * * 6 8) 4 8)

It is also possible to specify the starting beat of the beam, but I cannot see when it is necessary to do this. Are there any situations when the starting beat -must- be specified, or is this just an alternative?


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