Re: Grace notes and voices.

[Simon Albrecht]

On 07.02.2016 01:13, Hwaen Ch'uqi wrote:
> Having searched rather thoroughly through the archives, I understand
> that the issue of grace notes within voice contexts is a perennial one.
> Unfortunately, the Known Issues and Warnings do not address my
> problem, and the example is, to my mind, incredibly contrived. At the
> root of my problem is that the grace notes in my example appear on the
> downbeat, so there is no rest or note to insert between any \voice and
> \grace command. Any thoughts on how I might rectify this situation
> would be greatly appreciated! Below is the code, and the output is
> attached.

Hello Hwaen,

it works if you repeat the \voiceXXX settings (implicit in your example) 
after the initial grace note.
Also I’d recommend using a minimum-length for these ties, else they 
become too short (another embarrassing bug…)
Complete code would be as follows:

%%%%%
\version "2.18.2"

\score {
  \new PianoStaff <<
    \new Staff {
      \relative c' {
        \key es \major \time 3/4 \clef treble
        <<
          {
            g'8 f g4 g %1A
          }
          \\
          {
            \grace <bes, g>8~\arpeggio \voiceTwo <bes g>2 \grace {  
<bes g>8~\arpeggio  }
            <bes g>4 %1B
          }
        >>
      }
    }
    \new Staff {
      \relative c' {
        \key es \major \time 3/4 \clef bass
        <<
          {
            g8 f g4 <bes, g'> %1A
          }
          \\
          {
            \grace <es,, es'>8~\arpeggio \voiceTwo <es es'>2 \grace {
              <es es'>8~\arpeggio
            } <es es'>4 %1B
          }
          \\
          {
            bes''2 s4 %1C
          }
          \\
          {
            s2. %1D
          }
        >>
      }
    }
  >>
  \layout {
    \context {
      \Voice
      \override Tie.minimum-length = 2.4
    }
  }
}
%%%%%%

Best, Simon