Re: where is the default auto-beam settings for 2/4 defined?

[Trevor Daniels]

Frédéric Bron wrote Wednesday, September 02, 2009 6:18 AM
> Your remark is interesting! The doc says if they are some rules
> defined in auto-beam.scm, you MUST use #(override and #(revert...

But only when the beam durations are the same.  This is stated, 
maybe
not very clearly, where I've indicated, here:

> "There are two mutually exclusive ways in which these rules may be
> modified. The first, modifying the grouping of beats, applies to
> uncommon time signatures, i.e. those for which there are no 
> predefined
> rules defining the beam end points. The second method, modifying 
> the
> specification of the beam end points, can be used for any time
> signature. This second method must be used for those time 
> signatures
> and beam durations combinations for which beam ending rules are
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> pre-defined, unless these have all been reverted. There are 
> predefined
> rules for time signatures of 3/2, 3/4, 4/4, 2/4, 4/8, 4/16, 6/8, 
> 9/8
> and 12/8. "

That's why the rules for 32nd notes don't affect 8th note beaming.
Also see the comment in scm/auto-beam.scm just above this
entry.

This was very unsatisfactory, but auto-beaming has changed
completely in 2.13, so the issue has already been addressed.

Trevor