> In this case, temporary voices won't work,
> because then I no longer have both
> instruments separately.
If you already have the full parts for both
instruments separately then I think the approach
using two voices is still the best, as follows
below:
>
> The other thing that I have tried is simply
> putting both instruments on the
> same staff as different voices. This, however,
> has other problems:
> 1) notes of the same length are not combined into
> a chord,
No, but doesn't this make it easier to tell when
the two instruments cross over, for example?
> 2) stem directions have to be fixed with
> \voiceOne / \voiceTwo,
Defining a couple of variables makes this easier
> 3) When both instruments have a rest, two rests
> are printed in strange
> locations...
This can be fixed, as follows. You have to tag
sections where the horns are in unison and where
they are separate in each part, made easier by
defining a couple of variables, in order to get
the rests right.
\version "2.11.34"
One = {\tag #'One {\voiceOne}}
Two = {\tag #'Two {\voiceTwo}}
Both = \oneVoice
HornOne = \relative c'' {
% The entire part for Horn 1
\Both R1 | % Section in unison
\One R1 | b2.\f a4 | gis4 % Separate
\Both fis4 e2 | % In unison again
}
HornTwo = \relative c'' {
% The entire part for Horn 2
\Both R1 |
\Two a2.\f gis4 | fis2. fis4 | fis
\Both fis4 e2 |
}
% Print combined staff
\score {
\new Staff {
\key e \major
\time 4/4
<<
\HornOne
\\
\HornTwo
>>
}
}
% Print on separate staves
\score {
<<
\new Staff {
\key e \major
\time 4/4
\removeWithTag #'One
\HornOne
}
\new Staff {
\key e \major
\time 4/4
\removeWithTag #'Two
\HornTwo
}
>>
}
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