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

[Kenneth Wolcott]

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

Swan_Lake.ly
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Swan_Lake.pdf
Description: Adobe PDF document

Screen Shot 2022-07-30 at 14.39.24.png
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