Re: Help, simple music function not compiling

[Eric Dedieu]

>> %% the function that will fail
>> tempoMarkEqual =
>> #(define-music-function (parser location before after)
>>  (string? string?)
>>  #{
>>  \mark \markup \tiny { \note $before #1 = \note $after #1 }
>>  #} )
>
> with a '#' before "$before" and "$after", it works.

Thanks a lot !  Can somebody explain why the #s were needed in that case ?