[Fwd: Re: Polyphony clarification]

[Mats Bengtsson]

Graham and other GDP workers. This discussion from lilypond-user might 
be useful for the updating of the learning manual.

Charles Gran wrote:
> So \upper could be a name of a voice that could have \voiceTwo 
> properties?
>   
That wouldn't make sense, since \voiceTwo is equivalent to
\stemDown \slurDown \tieDown \dynamicDown ...
and you typically want everything to point upwards in an upper voice, right?

How about introducing the concepts one by one. First the \voiceOne 
\voiceTwo and
\oneVoice commands without any polyphony:

\relative c'{
c-"default" d8 ~ d e4 ( f g a ) b-> c \break
\voiceOne
c,-"\\voiceOne" d8 ~ d e4 ( f g a ) b-> c \break
\oneVoice
c,-"\\oneVoice" d8 ~ d e4 ( f g a ) b-> c \break
\voiceTwo
c,-"\\voiceTwo" d8 ~ d e4 ( f g a ) b-> c \break
}


Then a less abstract version of the first example:

\new Staff \relative c' <<{c ( d e ) f-. } \\ { c b8 ( a ) g4 c } >>

is equivalent to

\new Staff \relative c' <<
\new Voice { \voiceOne c ( d e ) f-. }
\new Voice { \voiceTwo c b8 ( a ) g4 c }
> >


  /Mats



--
=============================================
        Mats Bengtsson
        Signal Processing
        Signals, Sensors and Systems
        Royal Institute of Technology
        SE-100 44  STOCKHOLM
        Sweden
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