Function for Chords in Header

[Kale Good]

Hello List,

I'm trying to create multiple guitar lead sheets with a "chord summary", including fretboards, in the header.

The cleanest way I could think to do this was to use a function.

I've created a function that creates what I'm looking for outside of a markup block. Used inside of a markup block, it fails.

I also need to be redundant with \chordmode (wrapping my argument it it when I call the function and inside the function). I assume this is due either to a) lilypond interpreting and storing the "pitches" prior to passing them to the function or b) my argument type is wrong (couldn't find anything else that acted differently, though).

\include "predefined-guitar-fretboards.ly"
chordSummaryFunc =
  #(define-void-function (music) (ly:music?)
   (toplevel-score-handler
      #{
        \score {
           <<
              \new ChordNames \chordmode { $music }
              \new FretBoards \chordmode { $music }
            >>
          }
      #}))

\header {
  title = "test"
  subtitle = \markup { Chords \chordSummaryFunc \chordmode{ g b } }
}

\chordSummaryFunc \chordmode{ g b }

Thanks for any help.

Best,

Kale

--

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Kale Good
Good Music Academy ♫
4705 Baltimore Ave, Phila, PA 19143
phone: (215)260-5383

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