Re: What is the name of this and how to code in lily

[Simon Albrecht]

Am 07.02.2015 um 12:20 schrieb Noeck:
> Hi Ming,
>
> I played a bit to reproduce the measure you sent. This was my first try to
> typset the upper staff:
>
> \version "2.18.2"
>
> \relative c ' {
>    \key g \major
>    <c d fis a>4  <es g bes>8[ <d f g b>]:64---> ~
>    q2:32\fermata
>    \bar "|."
> }
>
> However there are 3 things to notice (one on notation and 2 on Lilypond):
>
> 1. At least for Lilypond, the 3 slashes mean a 1/64th -tremolo - probably
> because the beam counts a fourth slash (?). This means the notation in your copy
> and in Lilypond has different opinions on this. I would choose a 1/32th-tremolo
> as for the half note chord at the end (i.e. 2 slashes + beam).
I think the model score Ming sent is being inconsistent here, as 
according to standard notation it would have a 1/64-note tremolo on the 
eight note and a 1/32-note tremolo on the half note. At least it would 
be extraordinary if the composer had intended that the tremolo changes 
its speed (and anyway, a tremolo does not have a specific speed usually, 
but is rather played “as fast as possible”).
So I would tend toward using :32 for both chords and thus harmonise the 
speed.

Yours, Simon
> 2. The beam gets very steep with this tremolo sign and it should not because the
> chords are on the level. This can be done by overriding Beam.positions.
> But I would have thought LilyPond is a bit more clever here out-of-the-box.
>
> 3. The second tie from the top is extremely short (just a dot). I think Lilypond
> should figure out somehow that a chord with a note on the right of the stem
> needs a bit longer ties than it is now. This can be done with a tweak (or an
> override) of the minimum-length.
>
> @Developers: Could one consider these two things a bug (ugly): Issues 2 and 3
> here (tremolo shifts beam too much and ties in chords with seconds too short)?
>
> With these tweaks it looks ok:
>
> \version "2.18.2"
>
> \relative c ' {
>    \key g \major
>    \override Beam.positions = #'(3 . 3)
>    <c d fis a>4  <es g bes>8[ <d f g b>]:32--->
>    -\tweak #'minimum-length #4 ~
>    q2:32\fermata
>    \bar "|."
> }
>
> Cheers,
> Joram
>
> _______________________________________________
> lilypond-user mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/lilypond-user