Re: \omit multiple/list

[Kieren MacMillan]

Hi David,

Thanks for the fishing lesson!

> How about
> 
> omitt =
> #(define-music-function (groblist) (symbol-list?)
>  #{ #@(map omit (map list groblist)) #})
> 
> \void \displayLilyMusic \omitt TimeSignature,NoteHead

AH!
symbol-list? is clearly something I needed to know [about]…

> You need to return music (instead of pretending that calling omit will
> achieve anything by side-effect).
> 
> And of course you need a music function.

I toyed around with that, but ran into the good old “music function cannot 
return ##<unspecified>” error and punted so I could get back to the work I’m 
*supposed* to be doing…  ;)

Thanks again!
I hope Damian appreciates your response as much as I do.  :)

— Kieren
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