Re: Tuplet spanner length bug in v.2.13?

[Kieren MacMillan]

Hi Richard,

> It seems to me that \set tupletSpannerDuration fails to affect  
> tuplets that are in a << \\ >> construct.

Only if you don't code it right...  ;)

> music =
> {
>     <<
>     % This fails to create the right tuplet-spanners.
>     \set tupletSpannerDuration = #(ly:make-moment 1 8)    %  
> indicates that there's a triplet group every quaver
>     \relative c' \times 2/3 { e16 e e e e e e e e e e e }
>     \\
>     c'2
>     >>
> } % music

You need to put the \set and the tuplets in the same Voice context:

music =
{
    <<
    % This fails to create the right tuplet-spanners.
    { \set tupletSpannerDuration = #(ly:make-moment 1 8)    %  
indicates that there's a triplet group every quaver
    \relative c' \times 2/3 { e16 e e e e e e e e e e e }
    }
    \\
    c'2
    >>
} % music

Note the new braces!!
This ensures that the \set and the tuplets are in the same Voice  
context, so Lily works as expected.

Hope this helps!
Kieren.