Re: Has piano pedal brackets end on the right of a note column. (issue 4899050)

[Keith OHara]

On Thu, 18 Aug 2011 23:25:40 -0700, Mike Solomon <address@hidden> wrote:

> On Aug 19, 2011, at 5:01 AM, address@hidden wrote:
> > I think the correct fix is merely to ignore suspended heads, which could
> > be implemented as aligning to the stem for down-stems.  I find good
> > evidence to back that up I'll post on the bug tracker.
>
> If this is the fix,

I don't know until next time I look at Ted Ross' book in the library.  I have 
lots of piano music, but pedaling is very rarely written explicitly.

I would have thought piano pedal brackets would work just like hairpins, but 
input/regression/pedal-bracket.ly says they end a bit earlier, at the /left/ of 
the main note column.

> my recent work on 620 could be tweaked a bit to be used in this situation as 
> well.  Currently, bound-interfaces is a property that resides in the grobs 
> being aligned to (note columns, paper columns).  If instead bound interfaces 
> resides in the grobs that are being aligned (hairpins, line spanners, piano 
> pedals), then the same note column could be aligned to different ways for 
> different grobs.  The more I think about it, the more it makes sense.  Let me 
> know if you think this'd be a good option.

You mean your new 'bound-alignment-interfaces.  I didn't follow issue 620, but 
looking now I don't see how it helps.  We would want to find the left extent of 
the note-heads in the main note column, excluding suspended note-heads.  
(Actually, I think that is the x-reference point for the NoteColumn)