Re: Mac OS X libguile.17.dylib Trace/BPT Trap error when adding a second voice to piano score

[Paul Scott]

David Fedoruk wrote:
> On 6/15/07, Graham Percival <address@hidden> wrote:
> > David Fedoruk wrote:
> > >     \version "2.10.25"
> > >     upper = \relative c'' {
> > >        \clef treble
> > >        \key e \major
> > >        \time 3/4
> > >
> > >     \key e \minor r8  b''8 \grace a16 g8  fs e d | % Bar 21
> > >
> > >                 {a'4-| a8 a gs fs b d |
> >
> > Why do you have an extra { in there?
> >
> > >     \grace b16 c2. | b2.              | % Bar 23
> >
> > Cheers,
> > - Graham
> The { is in the documentation in the section on Single Staff
> Polyphony. At first I had the closing bracket in with it to, but that
> had the same result.

The documentation you refer suggests more,  It is:

<< { voice_one } \\ { voice_two }  >>

All of those symbols are necessary,

Paul Scott