Re: Different notehead types sharing a stem in double-stops

[Cameron Horsburgh]

On Fri, Feb 16, 2007 at 03:37:16AM +0000, Michael Culbertson wrote:
> Hello,
> 
>   For string instruments, double-stops that involve all four chords are 
> usually
> written with quarter-note heads for the bottom two notes, even if the rest of
> the chord is a half note.  This is because the bottom two chords are struck 
> only
> momentarily, like grace notes.  Consider, for example:
> 
> \paper { ragged-right = ##t }
> \new Score \relative c' {
>   \clef treble \key g \minor \time 3/4 \cadenzaOn
>   r4\< \times 2/3 { d'8[ e\tenuto( f\tenuto)] } \bar "|"
>               <g,, d' bes' g'>2\f g''4 g \bar "|"
>   \cadenzaOff
> }
> 
> Here all four heads should touch the same upward stem, and the lower G and D
> should have filled-in heads, while the B-flat and upper G should have open
> heads.  But, I can't figure out how to entice Lilypond to do such a thing.  I
> tried separate voices, but Lilypond either split the stems (reasonable if they
> actually were different parts) or complained of note collisions (when I tried
> forcing the stem directions).  In any case, the crescendo wouldn't end on the
> forte with the anonymous separate voices hack.  I figure there's a way to
> override the note heads, but I can't make out the necessary scheme.  Any 
> ideas?
> 
> Thanks,
> Michael Culbertson

I'm not able to construct an example for you, but I think the \tweak
command might do just what you want. Check section 9.3.5 of the 2.11
manual (it should alkso work in 2.10).


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Cameron Horsburgh

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