Re: Arguments before functions

[David Kastrup]

"Fr. Samuel Springuel" <rpspringuel@gmail.com> writes:

> Is there a way for a music function to operate on the note that precedes it?
>
> I’m transcribing chant and have lots of music where I transcribed the
> note just before the bar as a quarter note (the same as other
> non-reciting notes in the measure):
>
> { \cadenzaOn g'1 c'4 f'  \bar "|" }
>
>
> I’ve been asked now to lengthen the note just before the bar by making
> it into a dotted quarter:
>
> { \cadenzaOn g'1 c'4 f'4.  \bar "|" }
>
> What I’d like to know is if there’s a way that I can modify the \bar
> function so that it automatically changes the duration of the note
> just before it, or if I have to break out the text replacement tools
> to modify all my source files.

I don't see that you can fix this with a music function, but of course
you can process the complete music expression and then modify any note
before a \bar "|".

> As a further complication, the dotted quarter notation hasn’t been
> settled yet, as there are some arguing for making it a quarter with a
> tenuto and others for a half note, so I’d really like a function that
> allows me to switch between those three options (dotted quarter,
> quarter with tenuto, or half note) relatively easily.

That would then be reasonably simple.

-- 
David Kastrup