RE: How to get cross-staff beaming? Should be automatic; it's not. Why?

[Mark Stephen Mrotek]

Kenneth,

The auto beaming can be overridden using   [......]. Look up "manual beaming" 
in the docs.
Stem direction can be changed with \stemUp and \stemDown.
Attached is a start.

Mark

-----Original Message-----
From: lilypond-user [mailto:lilypond-user-bounces+carsonmark=ca.rr....@gnu.org] 
On Behalf Of Kenneth Wolcott
Sent: Sunday, July 31, 2022 7:10 PM
To: Lily Pond <lilypond-user@gnu.org>
Subject: How to get cross-staff beaming? Should be automatic; it's not. Why?

Hi;

  Making progress on the \change Staff Lilypond feature now.

  However, the current incarnation of my Swan Lake harp part (one bar so far), 
does not have a complete beam (only each triplet has a beam).
I thought that this would be automatic.

  Please see attachments.

Thanks,
Ken Wolcott

\version "2.22.2"

% Swan Lake

global = {
  \language "english"
  \time 4/4
  \key d \major
  \tempo "Moderato"
}

\header {
  title = "Swan Lake"
  composer = "Tchaikovsky"
}

\score {
  \new PianoStaff <<
    \new Staff = "upper" {
      \clef treble
      <>
      \change Staff = "lower"
      \tuplet 3/2 { b,8\mf([d b }
      \change Staff = "upper"
      \tuplet 3/2 { \stemDown d'8 fs' b'] }
      \tuplet 3/2 { d''8 [b' fs' }
      \change Staff = "lower"
      \tuplet 3/2 { \stemUp d'8 b fs]) }                           | % m01
    }
    \new Staff = "lower" {
      \clef bass
      s1
    }
  >>
}