Re: Double-stemming question.

[Hwaen Ch'uqi]

Greetings Carl,

Thank you for your explanation. What you say makes sense. I suppose I
would have liked an appearance where, at first glance, the second pair
of chords in the example do not look like four chords but two, like
the first two chords. Given that the entire piece is made up of these
gestures, one should fairly easily intuit that the chords with seconds
are in fact the same chords from upper to lower voice.

Thank you again.

Hwaen Ch'uqi


On 7/4/20, Carl Sorensen  wrote:
> On Sat, Jul 4, 2020 at 9:20 AM Hwaen Ch'uqi  wrote:
>
>> Greetings,
>>
>> In the following measure of code, there are several instances of
>> double-stemming. The single notes and triads merge correctly, but the
>> four-note chords do not. I feel like the reason and solution should be
>> straightforward, but I cannot seem to wrap my head around the
>> situation. Any help would be greatly appreciated. Please forgive the
>> slight length of the code. I have also attached the pdf output.
>>
>
> What would you like to have happen with double-stemming when the chord
> includes an interval of a second?
>
> For a chord not including a second, the stem is on the left side for a down
> stem and on the right side for an up stem.
>
> For a chord including a second, both the down stem and the up stem have the
> same position.  For a quarter-note or half-note chord, that notation would
> be confusing.  For an eighth-note or shorter chord, the flags or beams can
> show the direction of the stem.
>
> It seems to me that if you want to have a chord containing a second in two
> voices, the current LilyPond way of doing it is correct for quarter note or
> longer chords.  If there is a problem, it is that we might not need to do
> it that way for shorter chords.
>
> Carl
>

Re: Double-stemming question.

[Carl Sorensen]

On Sat, Jul 4, 2020 at 9:20 AM Hwaen Ch'uqi  wrote:

> Greetings,
>
> In the following measure of code, there are several instances of
> double-stemming. The single notes and triads merge correctly, but the
> four-note chords do not. I feel like the reason and solution should be
> straightforward, but I cannot seem to wrap my head around the
> situation. Any help would be greatly appreciated. Please forgive the
> slight length of the code. I have also attached the pdf output.
>

What would you like to have happen with double-stemming when the chord
includes an interval of a second?

For a chord not including a second, the stem is on the left side for a down
stem and on the right side for an up stem.

For a chord including a second, both the down stem and the up stem have the
same position.  For a quarter-note or half-note chord, that notation would
be confusing.  For an eighth-note or shorter chord, the flags or beams can
show the direction of the stem.

It seems to me that if you want to have a chord containing a second in two
voices, the current LilyPond way of doing it is correct for quarter note or
longer chords.  If there is a problem, it is that we might not need to do
it that way for shorter chords.

Carl

Re: Double-stemming question.

[Lukas-Fabian Moser]

Hi Hwaen,


The single notes and triads merge correctly, but the
four-note chords do not.


This seems to be a bug. The culprit is the combination of two notes a 
step apart (and you can see that they are aligned differently in both 
instances).


While I can't provide you with a solution right now, maybe the following 
minimal example helps:


\version "2.20.0"

\new Staff \fixed c'
<<
  {} \\
  {}
>>

Lukas

PS. As an aside: To be honest, I think that the triple-dots in the 
lowest voice, while perfectly correct, are overkill. Of course it's a 
matter of style and taste, but my feeling is that lots of composers 
(like Schumann for instance) would just have written a downwards stem 
without bothering to much about the mathematically correct length.

Double-stemming question.

[Hwaen Ch'uqi]

Greetings,

In the following measure of code, there are several instances of
double-stemming. The single notes and triads merge correctly, but the
four-note chords do not. I feel like the reason and solution should be
straightforward, but I cannot seem to wrap my head around the
situation. Any help would be greatly appreciated. Please forgive the
slight length of the code. I have also attached the pdf output.

Hwaen Ch'uqi

\version "2.20.0"

\score {
  \new PianoStaff <<
\new Staff = up {
  \relative c' {
\key gis \minor \time 4/4 \clef treble
<<
  {
\mergeDifferentlyHeadedOn
s8.. 32 4 s8.. 32
4
  }
  \\
  {
s1
  }
>>
  }
}
\new Staff = down {
  \relative c' {
\key gis \minor \time 4/4 \clef bass
<<
  {
\mergeDifferentlyHeadedOn
\mergeDifferentlyDottedOn
gis,,32 gis'' cis \change Staff = up \voiceTwo eis eis' cis gis'
  gis cis eis, gis, \change Staff = down
\voiceOne eis gis, gis,, gis gis'' dis' \change Staff = up \voiceTwo
fisis fisis' cis ais'   ais,
cis dis, ais \change Staff = down \voiceOne fisis gis, gis,,
  }
  \\
  {
gis4... gis32 gis4... gis32
  }
>>
  }
}
  >>
}


MWE.pdf
Description: Adobe PDF document