Re: big-picture question regarding Lilypond's capabilities (current and potential)

[address@hidden]

On 16 mars 2013, at 17:17, Kieren MacMillan <address@hidden> wrote:

> Hello all,
> 
> My two-act musical, "Robin Hood: The Legendary Musical Comedy", had a 
> three-week run at Toronto's Hart House Theatre in January. It was quite 
> successful, to the point that several parties have voiced an interest in 
> further developing and producing it.
> 
> In my dream world, people who are interested in producing any of my musicals 
> should be able to say (e.g.) the following:
> 
>    1. “I would like PDFs for the full score, vocal score, vocal book, and 
> band parts for piano+bass+percussion."
>    2. "I would like ‘Generosity’ transposed down a tone.”
>    3. “In the opening number, I would like to cut mm. 101-117, and have mm. 
> 212-213 made into a vamp (i.e., with repeat signs and the word ‘vamp, cont. 
> on vox’ written above).”
> 
> This email is to determine to what degree these are possible now, or might be 
> possible in the future.
> 
> In particular, I'm interested in #3, since it could more seriously impact the 
> way I organize the input code. (For #1 and #2, it's mostly just figuring out 
> and perfecting the infrastructure for on-demand printing — nontrivial, to be 
> sure, but mostly post-input-code.)

I use tags with absolute note entry for this sorta thing all the time.

One thing that is relatively easy to do is to create code formatting tools that 
will parse .ly code and spit out, for example, one measure per line (for simple 
music) that are all tagged via some sorta system. Then, a music function can 
generate keepWithTag and removeWithTag stuff based on the bars you want.

In general, in the realm of code beautifying and formatting, there are lots of 
3rd party tools that can be developed around LilyPond. The less out-there the 
music, the easier it is to apply these and augment the music's plasticity.

Cheers,
MS

> 
> Given the current (v2.17) capabilities of Lilypond, what are the various ways 
> I could accomplish #3?
> What's likely the "best" way?
> Are functions like \partCombine, \extractMusic, etc. up to the task(s)?
> 
> Thanks,
> Kieren.
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