Simple variable definition

[Vaughan McAlley]

I’ve spent way to long trying to work this out... the simple test file:

%test1.ly
\version "2.14.2"

myTranspose =    \transpose c' c
staffOneName = "Soprano"

% Version for men’s choir
%{
myTranspose =  \transpose c' g
staffOneName = "Alto"
%}

...produces

test1.ly:4:0: error: syntax error, unexpected STRING

What’s going on here? There are no misplaced curly braces or the like...

Thanks,
Vaughan