Re: Preventing tempo marks stacking (redux)

[Keith OHara]

On Mon, 11 Nov 2013 06:42:53 -0800, Kieren MacMillan <address@hidden> wrote:

> > I can never remember the overrides, so I defined the set to space marks as
> >  \markLengthOn
> > and got it into LilyPond versions 2.17.19 and later.
>
> Is there some good reason why this is not the default, with \markLengthOff as 
> the “tweak”?

Probably it could be, but when a user reported that an empty tempo mark in his 
score affected page breaking (but not final layout) I got conservative.
See the tortuous history at
 <http://code.google.com/p/lilypond/issues/detail?id=3279>


> > For reasons I could never figure out
> >  <http://code.google.com/p/lilypond/issues/detail?id=684>
> > MetronomeMark uses a different interface than the rehearsal marks and bar 
> > numbers.
>
> I’ve asked Janek if he might consider this as a sponsored fix.  =)

Good.  It might best be done by reading the request of an earlier sponsored fix 
(issue 684) and checking if everything requested for MetronomeMark could be 
handled by the documented 'break-align' interface that RehearsalMark uses (with 
different default settings, of course). By my reading, the old interface will 
be fine; Daniel Rosen's request on this thread would be handled by putting 
'staff-bar' on the list of preferred alignment points for tempo marks.  The 
special-case handling of measures with any full-measure rest (in any Voice in 
any Staff) seems to have been based on misunderstandings.