Re: Horns example from blog

[Urs Liska]

Am 22.02.2013 11:18, schrieb Jim Long:

On Fri, Feb 22, 2013 at 09:41:01AM +0100, David Kastrup wrote:

Jim Long <address@hidden> writes:

I will say that the merging of noteheads onto stems is probably
the weak spot in my knowledge.

[...]

The piece also generates several warnings about clashing note
columns.

Small wonder:

	    \new Voice { \voiceOne \hornA }
	    \new Voice { \voiceOne \hornB }

Both with \voiceOne but in separate voices?

I didn't mean to imply that it shouldn't generate those warnings,
just acknowledging that the warning serve to indicate that this
probably isn't "snippet-quality" code.

I was trying to reproduce the example .png given in the blog,
accessible at http://felixrosch.com/example.png.

That example shows two grouped staves, each with two horn parts
written on the same stem, as though they were a chord.  

Ah, that makes it clearer.
If you want to achieve that result but want (obviously) to have separate voices you can write both as you did but write

\override NoteColumn #'ignore-collision = ##t

to suppress the warnings (which would make it more elegant).
But please read http://www.lilypond.org/doc/v2.17/Documentation/notation/multiple-voices#automatic-part-combining, which will probably lead you to the 'right' solution (especially in the given context as a show-case example).

HTH
Urs

I didn't
know how else to merge the noteheads from two different voices
onto a single stem.  See opening disclosure.  I'll try chasing
down some of Xavier's clues.


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