RE: Learning how to use "\change Staff"; don't get it yet, obviously

[Mark Stephen Mrotek]

Kenneth,

Not dense at all.
Change staff works within a single voice. You split it between rh and lh. Might 
suggest you use "upper" and "lower" for staff designation if you use rh and lh 
as variable names.

Assuming you start in "lower" with lh.
Then 
\tuplet 3/2 { b,8(d b }
  \change Staff = "upper"   %% now continue with what you want in "upper"
{ d'8 fs' b' } \tuplet 3/2 { d''8 b' fs' }
  \change Staff = "lower"   %% and so on.

Note: that rh must contain spacers all the while so that the voice can move 
back and forth without collisions.

Mark

-----Original Message-----
From: lilypond-user [mailto:lilypond-user-bounces+carsonmark=ca.rr.com@gnu.org] 
On Behalf Of Kenneth Wolcott
Sent: Saturday, July 30, 2022 2:49 PM
To: Lily Pond <lilypond-user@gnu.org>
Subject: Learning how to use "\change Staff"; don't get it yet, obviously

Hi;

  I'm learning how to engrave music that changes from one staff to another.

  I, obviously, do not understand yet how to do this, even after reading the 
pertinent section in the Notation Reference.

  My attempt to engrave the first three bars of the harp score of Swan Lake 
fails with the following:

Swan_Lake.ly:40:3: warning: cannot find context to change to: Staff = RH

  \change Staff = "RH"
Swan_Lake.ly:22:3: warning: cannot find context to change to: Staff = LH

  \change Staff = "LH" <> s4                                    | % m01

  I have attached a screenshot of the first three bars of the harp score of 
Swan Lake, my LIlypond source code and the result of my engraving attempt.

  I don't think that there's anything wrong with Lilypond, and there's nothing 
wrong with the documentation, but this Lilypond user is a bit dense.

  If I can just get the first bar engraving correctly, I think I can make it 
the rest of the way :-)

Thanks,
Ken Wolcott