Re: variables in \book { }

[Graham King]

oops, just found the simple fix (I think):

>     \version "2.19.35"
>     
>     music = { \relative { c' d e f }}
>       
>     \book {
>       \score {
>         \music
>       }
>     }
One extra pair of braces around the music _expression_.

Apologies for the noise.