Re: Unterminated slurs in multi-voice volta alternative ending

[address@hidden]

Hi Thomas

Despite or thanks to the rather lenghty code example you have been able
to grasp and answer almost every aspect/problem I had in mind.

I decided for two separate voices and omitting repeats according to your
recommendation.

The single (better: double ;-) ) voice as well as the SAATB (ChoirStaff)
scores are absolutely suitable.

The only disadvantage: Having 3 separate female voices now makes the use
of \partcombine for the right hand of the piano reduction unusable.
Instead I went for a simple three-voice staff, which misses the optical
optimisations of \partcombine, but works for rehearsal purposes.

Thanks a lot!
Cheers, Stephan

Am 05.05.2019 um 11:23 schrieb Thomas Morley:
> Am Sa., 4. Mai 2019 um 23:30 Uhr schrieb address@hidden <address@hidden>:
>>
>> Hello everbody
>>
>> The following example produces 2 compile warnings (cannot end slur,
>> unterminated slur). I'm missing the slur between dis in bar 3 and d in
>> bar 4, both in an additional temporary voice context.
>>
>> It's a snippet from a SATB arrangement with 2 alto voices put in one
>> staff. In order to align the text to alto 1 I chose to add temporary
>> voice contexts for alto 2 (which is most of the time).
>>
>> (The only alternative I could imagine is to
>> * write alto 2 in a completely separate voice, hiding notes during
>> "oneVoice" portions with invisible breaks (s)
>> * to combine the alto 1 voice and the alto 2 voice together in one
>> (multi-voice alto) staff,
>> * add the lyrics to alto 1 (alto 2 lyrics are identical to alto 1 lyrics).
>
> Hi Stephan,
>
> please try to break down the problem to a minimal.
> Superfluous code obfuscates the problem and may prevent people to have
> a deeper look at your request.
>
> You may have arrived at:
> \new Staff { \new Voice b( \new Voice b) }
> Which reproduces the mentioned warnings.
> Reason: two _new_ Voices are done in sequence, but they are not
> related to each other, apart from being printed one after the other.
> Thus the Slur does not work from one Voice to another.
> You rather want to _continue_ the already started Voice. This is
> possible with \context instead of \new
> \new Staff { \new Voice b( \context Voice b) }
> Though, in polyphonic cases this may fail again.
> This can be cured by using named Voices:
> \new Staff
>   <<
>     { \voiceOne d'2( d') }
>     { \new Voice = "2" { \voiceTwo } b( \context Voice = "2" b) }
>   >>
>
> Albeit, using this approach in your example leads to the code below,
> which is hard to read, with all those equal settings needed again and
> again:
>
> \version "2.19.83"
>
> global = {
>   \key g \major
>   \time 4/4
> }
>
> altoVoices = \relative c'' {
>   \global
>   \repeat volta 2 {
>     <<
>       {
>         \voiceOne
>         g4 g g g
>       }
>       \new Voice = "down" {
>         \voiceTwo
>         s2 d4 d
>       }
>     >>
>   }
>   \alternative {
>     {
>       <<
>         {
>           \voiceOne
>           fis2 r2
>         }
>         \context Voice = "down" {
>           \voiceTwo
>           d2 r2
>         }
>       >>
>     }
>     {
>       <<
>         {
>           \voiceOne
>           g4 r fis2(
>         }
>         \context Voice = "down" {
>           \voiceTwo
>           d4 r dis2(
>         }
>       >>
>     }
>   }
>   <<
>     {
>       \voiceOne
>       g1)
>     }
>     \context Voice = "down" {
>       \voiceTwo
>       d1)
>     }
>   >>
> }
>
> altoLyrics = \lyricmode {
>   \repeat volta 2 {
>     This is a new
>   }
>   \alternative {
>     {
>       song.
>     }
>     {
>       song, uuh, __
>     }
>   }
> }
>
> \score {
>   \new Staff {
>       \altoVoices
>   }
>   \addlyrics {
>     \altoLyrics
>   }
> }
>
> I'd recommend to code the two Voices completely separate, putting them
> together in \score
>
> global = {
>   \key g \major
>   \time 4/4
> }
>
> one = \relative c'' {
>   \repeat volta 2 {
>     g4 g g g
>   }
>   \alternative {
>     {
>       fis2 r2
>     }
>     {
>       g4 r fis2(
>     }
>   }
>   g1)
> }
>
> two = \relative c' {
>   \repeat volta 2 {
>     s2 d4 d
>   }
>   \alternative {
>     {
>       d2 r2
>     }
>     {
>       d4 r dis2(
>     }
>   }
>   d1)
> }
>
> lyr = \lyricmode {
>   \repeat volta 2 {
>     This is a new
>   }
>   \alternative {
>     {
>       song.
>     }
>     {
>       song, uuh, __
>     }
>   }
> }
>
> \new Staff
>   <<
>     \new Voice { \global \voiceOne \one }
>     \new Voice { \global \voiceTwo \two }
>   >>
> \addlyrics \lyr
>
> Looks much cleaner and easier to read.
> Although one could simply remove the structure:
> \repeat ... \alternative ...
> in second Voice and Lyrics.
> Additionally I'd go for \new Lyrics ... instead of \addlyrics for all
> but most simple cases.
> addlyrics is a shortcut, sometimes more "cut" than "short" ;)
>
>
> I'm aware some people don't like entering Voices separately as I recommend.
> Then  \parallelMusic may be the way to go:
> http://lilypond.org/doc/v2.19/Documentation/notation-big-page#writing-music-in-parallel
>
>
>>
>> BTW: Is there a way to combine/collapse breaks within one staff in
>> multi-voice scenarios?
>
> Here I don't understand what you mean.
>
>
> Cheers,
>   Harm
>