Re: Break visibility for notes?

[Fr. Samuel Springuel]

> On 1 May, 2020, at 6:28 AM, Thomas Morley <address@hidden> wrote:
> 
> sorry for coming back to this that late. Because of Corona the
> workload for my regular job exploded ...

Totally understandable.  I’ve got plenty of things to work on and am not on a 
deadline for this so I’m not concerned with the delay.

> Below a hackish and probably fragile method to get the desired output anyway.
> Please test thoroughly before using it for serious work!

So far I’ve found that there are a few more items that need to be effected, so 
the first change I’ve made is to add them to noteHeadBreakVisibility:

noteHeadBreakVisibility =
#(define-music-function (break-visibility)(vector?)
     "Makes notes transparent relying on @var{break-visibility}.
The list of objects to make transparent is taken from @code{hideNotes}."
     #{
         \override NoteHead.transparent = #(tranparent-at-line-position 
break-visibility)
         \override Dots.transparent = #(tranparent-at-line-position 
break-visibility)
         \override Accidental.transparent = #(tranparent-at-line-position 
break-visibility)
         \override Rest.transparent = #(tranparent-at-line-position 
break-visibility)
         %stems are always hidden in chant
         %we assume chants are not in a TabStaff and so don't need to hide 
TabNoteHeads
         %ledger lines have to be taken care of in the layout block using 
delete-ledgers-for-transparent-note-heads
     #})

This, of course, isn’t related to the fragility.  I’ll start testing for that 
tomorrow.
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Fr. Samuel, OSB
(R. Padraic Springuel)
St. Anselm’s Abbey
4501 South Dakota Ave, NE
Washington, DC, 20017
202-269-2300
(c) 202-853-7036

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