Re: parentesized trill note colliding with ties

[Jeffrey Trevino]

Thanks, Nathan,

The slurs look fine, and it's clear from the output that the parenthesized trill note needs to go up higher. Maybe there is a way to do this with padding or something else that will use Lilypond's automated spacing correctly to move everything around without causing other collisions. 

thanks for your advise,
Jeff

On Sat, Nov 17, 2012 at 6:28 AM, Nathan <address@hidden> wrote:

On Fri, Nov 16, 2012 at 9:23 AM, Jeffrey Trevino <address@hidden> wrote:

Hi there,

I'm trying to get my parenthesized trill notes to stop colliding with ties, and I think there are a couple things I can learn by solving this problem.

First, I can't tell why the collision is happening -- is there a best practice for figuring out why elements collide?

Second, I know that some collisions happen because of engraver order. Is there a place I can look to see the default order of engravers, and how I can change this order?

If the collision should be avoided by changing padding, it looks like I might want to add some overrides to the PitchedTrillEngraver's TrillPitchGroup grob at the level of the voice context (according to the Internals reference).

thanks for taking a look,
Jeff

Here are two ways of fixing such collisions manually:

\new Staff \relative c'' {

  % Collision:

  \pitchedTrill b1~\startTrillSpan d b1\stopTrillSpan

  

  % Fixed by moving tie:

  \once \override Tie #'Y-offset = #0.75

  \pitchedTrill b1~\startTrillSpan d b1\stopTrillSpan

  

  % Fixed by reshaping tie (2.16+):

  \shape Tie #'((0 . 0.5) (0 . 0.75) (0 . 0.75) (0 . 0.5))

  \pitchedTrill b1~\startTrillSpan d b1\stopTrillSpan

}

But it seems to me that you want an automated solution, so this probably isn't very helpful.

Regards,

Nathan

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Jeff Treviño
PhD Candidate in Music Composition
@ the University of California, San Diego
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