Re: combining chords in chords

[Aaron Hill]

On 2021-04-22 6:01 am, Gianmaria Lari wrote:
> I have some variables, each containing one chord as in the following
> example:
>
> [...]
>
> How can I solve this?

Here's a way that involves merging the elements of the two EventChords:

%%%%
\version "2.22.0"

ja = <c e>8
jb = <g b>8
jc = <d f>8

mergeChords =
#(begin
  (define (event-chord-music? arg)
   (music-type-predicate 'event-chord))
  (define-music-function
   (first second)
   (event-chord-music? event-chord-music?)
   (set! first (ly:music-deep-copy first))
   (ly:music-set-property! first 'elements
    (append
     (ly:music-property first 'elements)
     (ly:music-property second 'elements)))
   first))

ka = \mergeChords \ja \jb
kb = \mergeChords \ja \jc
kc = \mergeChords \jb \jc

\new Voice \fixed c' { \ka[ \kb \kc] }
%%%%

Could be some hidden quirks with this approach, but it does seem to 
allow the manual beaming to work.


-- Aaron Hill