Re: repeatTie question

2021-05-02 Thread David Kastrup
Lukas-Fabian Moser  writes:

> Hi,
>
> (I hope I don't start a discussion orthogonal to the actual topic:)
>
>> I don't think this is the right place – \laissezVibrer is not related
>> to repeats at all.
>
> That's something I have been wondering for some time now: There seem
> to be two semantically very different ideas relating to ties to/from
> nothing, namely:
>
> - as an articulation: Obvious for \laissezVibrer from the name, but
>   might also be conceivable as some esoteric form of "dal niente" for
>   \repeatTie
>
> - as a special construction for ties cut in half by repeat barlines
>   (which might also be needed for slurs and phrasing slurs, for that
>  matter).
>
> At the moment, \laissezVibrer and \repeatTie form a geometrically
> symmetric pair, so to speak, but the names are distinctly
> non-symmetrical, one name emphasizing the use as an articulation, the
> other the use in a repeat situation.
>
> Wouldn't it, in the interest of semantically "correct" coding, more
> natural to have distinct commands
>
> - for articulation: a pair of \laissezVibrer and (e.g.) \tieFromNothing
>
> - for repeats: a pair of (e.g.) \openingTie & \closingTie or
>   \tieToRepeat & \tieFromRepeat ?

One thing about \laissezVibrer vs a repeat-ending semitie is that the
look may be the same, but the Midi rendition (or some MusicXML
conversion) should clearly be different.

-- 
David Kastrup



Re: repeatTie question

2021-05-02 Thread Lukas-Fabian Moser

Hi,

(I hope I don't start a discussion orthogonal to the actual topic:)


I don't think this is the right place – \laissezVibrer is not related
to repeats at all.


That's something I have been wondering for some time now: There seem to 
be two semantically very different ideas relating to ties to/from 
nothing, namely:


- as an articulation: Obvious for \laissezVibrer from the name, but 
might also be conceivable as some esoteric form of "dal niente" for 
\repeatTie


- as a special construction for ties cut in half by repeat barlines 
(which might also be needed for slurs and phrasing slurs, for that matter).


At the moment, \laissezVibrer and \repeatTie form a geometrically 
symmetric pair, so to speak, but the names are distinctly 
non-symmetrical, one name emphasizing the use as an articulation, the 
other the use in a repeat situation.


Wouldn't it, in the interest of semantically "correct" coding, more 
natural to have distinct commands


- for articulation: a pair of \laissezVibrer and (e.g.) \tieFromNothing

- for repeats: a pair of (e.g.) \openingTie & \closingTie or 
\tieToRepeat & \tieFromRepeat ?


Lukas




Re: repeatTie question

2021-05-02 Thread Werner LEMBERG

> It's ironic that \laissezVibrer follows on directly from \repeatTie
> on page 57, but you might miss it if the name means nothing to you,
> and the next illustration doesn't catch your eye.

In

  https://gitlab.com/lilypond/lilypond/-/merge_requests/751

I've added a paragraph at the beginning of the 'Ties' section that
explains ties to and from nothing.

> But I couldn't help noticing that, if you use the Contents rather than
> the Index, the lengthy section   § 1.4 Repeats   now doesn't cover
> ties at all, nor does it point back to  Ties  (which falls under
> § 1.2 Rhythms   unconnected with repeats).

Well, it gets mentioned as...

> There's an oblique reference to \repeatTie on page 161 under
> Known issues and warnings.

... this.

> Might this be preceded by a paragraph on the use of \laissezVibrer
> and \repeatTie, with a pointer back to pp56–7?

I don't think this is the right place – \laissezVibrer is not related
to repeats at all.


Werner