Dear Kieren,
I’d like to share two approaches I’ve developed for such issues. There’s
two caveats:
Firstly, I couldn’t take time to study your setup and how that makes
these approaches viable or not—sorry for that.
Secondly, if possible, I always try to use vanilla LilyPond tools, so I
prefer using tags as far as they may take me over using the
editionEngraver and I prefer complicated \include setups with Scheme
conditionals over using make. This is in an attempt to improve
maintainability and reduce overhead.
On 27.01.24 23:03, Kieren MacMillan wrote:
I don’t believe quoted music can be transposed directly (i.e., you need to
create a second, pre-transposed, quotation)
What I’ve started doing after running into this problem is for example
sop = { %{soprano music%} }
\addQuote "sop" \sop
\addQuote "sop8vb" \transpose c c, \sop
Recently I even put this into my standard include files to avoid having
that third (or more) lines from the example:
addQuote =
#(define-void-function (name music) (string? ly:music?)
(_i "Define @var{music} as a quotable music expression named
@var{name}, along with transposed versions @var{name8va} and
@var{name8vb}.")
(add-quotable name music)
(add-quotable (string-append name "8va")
#{ \transpose c c' $music #})
(add-quotable (string-append name "8vb")
#{ \transpose c c, $music #}))
Another technique is this:
%%% from my library/ly-utility.ily file
musicFunctionDummy = #(define-music-function (mus) (ly:music?) mus)
addToplevelMusicFunctions =
#(define-scheme-function (names) (symbol-list-or-symbol?)
(let* ((name-list (if (list? names) names (list names)))
(lookup-function
(lambda (name) (let ((fn (ly:parser-lookup name)))
(if (equal? fn '())
(begin
(ly:warning "Cannot find music function
~a to add to toplevel functions.\n" name)
musicFunctionDummy)
fn))))
(fn-list (map lookup-function name-list)))
(set! toplevel-music-functions
(append fn-list toplevel-music-functions))))
%%%
Example usage:
%%%
transposer = \transpose g f \etc
enharmonicsChooser = \keepWithTag #'originalSpelling \etc
\addToplevelMusicFunctions transposer,enharmonicsChooser
%%%
All the best for your projects!
Simon
