Re: remove individual ledger line?

[Mark Polesky]

I wrote:
> How do I tweak an individual ledger line from within a chord? Well, an hour 
> later, and all I've managed to achieve is printing the
staff-positions of the ledger lines that happen to have noteheads on
them (to the standard output), and while that makes me feel like a
minor genius, it seems I haven't gotten any closer to being able to
tweak these things individually. Worse yet, I see my initial question doesn't 
even capture the full
extent of what I'm trying to do here.  What I want to be able to do
is to tweak individual ledger lines, even if they don't have a note
attached to them.  For example, in... { a } ...there are 2 ledger lines below 
the treble staff to accomodate the
a-natural; I want to tweak both individually.  There must be a way! Does anyone 
know?  Even a nudge in the right direction would help. Thanks,
Mark ____________________________________________________________________ 
\version "2.17.21" {
\override Staff.LedgerLineSpanner.before-line-breaking =
#(lambda (grob) (map display (list "\n" (map ly:grob-staff-position 
(ly:grob-array->list (ly:grob-object grob 'note-heads)))))) a
} ____________________________________________________________________ GNU 
LilyPond 2.17.21
Processing `LedgerLineSpanner.ly'
Parsing...
Interpreting music...
Preprocessing graphical objects...
(-8)
Finding the ideal number of pages...
Fitting music on 1 page...
Drawing systems...
Layout output to `LedgerLineSpanner.ps'...
Converting to `./LedgerLineSpanner.pdf'...
Success: compilation successfully completed