Re: A problem with "placing grace notes between arpeggios and chords"

[Edward Neeman]

The quick and dirty solution would be this code:
https://code.google.com/archive/p/lilypond/issues/794

Surely it can be improved by tweaking the scheme function to avoid
using extra-offset.

\version "2.19.80"
\score {
  <<
    \new Staff {
      \grace { \override Score.Arpeggio.positions =
               #(lambda (grob) (interval-widen
(ly:arpeggio::calc-positions grob) 2.7))
               \override Score.Arpeggio.extra-offset = #'(0 . -2.7)
               \once \hideNotes e'8\arpeggio }
      e'4
    }
    \new Staff
    { \clef bass
    <<
      \new Voice {
        \voiceOne
        \once \slurDown
        \grace e8_~\arpeggio <e gis>2.
      }
      \new Voice { \voiceTwo <cis, gis,> }
    >>
    }
  >>

  \layout {
    \context {
      \Score
     \consists "Span_arpeggio_engraver"
     connectArpeggios = ##t
    }
  }
}

Best,
Edward
--------------

Dr. Edward Neeman
Adjunct Instructor, South Georgia State College
Collaborative Pianist, Valdosta State University, Georgia
Artist Faculty, ELMS Conservatory, Jakarta
address@hidden
www.neemanpianoduo.com


On Tue, Nov 14, 2017 at 3:51 PM, Thomas Morley <address@hidden> wrote:
> 2017-11-14 20:08 GMT+01:00 Robert Blackstone <address@hidden>:
>> Thank you very much, Harm.
>> Two solutions. No way that I would ever have been able to figure this out. 
>> I'm very impressed.
>>
>> The "bad news" is that only the first part of my problem is solved. What I 
>> would need is a cross-staff arpeggio that includes the bass notes (in this 
>> testfile; the, or a, real occurrence is in bar 91 of Chopin's Nocturne Op. 
>> 37 No. 2. Another nasty problem is in bar 119 of the same Nocturne. )
>>
>
> Comparing the different editions at IMSLP, I'd say say there's a wide
> variety how this piece is typeset.
>
> Here some coding-thoughts:
>
> \score {
>   <<
>     \new Staff {
>       \grace { \once \hideNotes e'8\arpeggio }
>       e'4
>     }
>     \new Staff
>     { \clef bass
>     <<
>       \new Voice {
>         \voiceOne
>         \once \slurDown
>         \grace e8_~\arpeggio <e gis>2.
>       }
>       \new Voice { \voiceTwo <cis, gis,> }
>     >>
>     }
>   >>
>
>   \layout {
>     \context {
>       \Score
>       \consists "Span_arpeggio_engraver"
>       connectArpeggios = ##t
>     }
>   }
> }
>
>
> \score {
>   <<
>     \new Staff <<
>       \key g \major
>       \new Voice {
>           s1
>         \voiceOne
>         ais''4\arpeggio
>       }
>       \new Voice {
>           s1
>           \set tieWaitForNote = ##t
>
>           \grace {
>             \once \override Slur.positions = #'(3 . 5)
>           b'16[^( b'~ dis''-\tweak minimum-length #5 _~]
>           }
>           \voiceFour
>           \dotsUp
>           <b' dis''>2.\arpeggio)
>       }
>       \new Voice {
>           s1
>         \voiceTwo ais'4
>       }
>   >>
>     \new Staff {
>       \key g \major
>       \clef bass
>       s1
>       <fis dis'>2.\arpeggio
>     }
>   >>
>
>   \layout {
>     \context {
>       \Score
>       \consists "Span_arpeggio_engraver"
>       connectArpeggios = ##t
>     }
>   }
> }
>
>
> Cheers,
>   Harm
>
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