Re: Custom Format

[Aaron Hill]

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> Could you point me to a place in the docs where I could understand
> what your solutions/functions are doing?

While not exhaustive, I would direct you to the Extending manual [1].  
It is a good starting point; in particular, it covers how LilyPond 
intermingles its own music syntax with that of Scheme.

[1]: http://lilypond.org/doc/v2.22/Documentation/extending/index.html


> > This looks like exactly what I want. Thank you for your efforts.
> > I will give each of these a shot and let you know how that goes.

Since LilyPond already uses numbers for durations, you might consider 
writing numeric pitches in alphabetic form, since this most clearly 
disambiguates pitches from durations.  Here is an example of defining 
custom note names in LilyPond:

%%%%
\version "2.22.0"

#(define (define-custom-note-names language notes)
  (set! language-pitch-names
        (acons language notes language-pitch-names)))

#(define-custom-note-names 'numeric-english
  `((zero . ,(ly:make-pitch -1 0 NATURAL))
    (one . ,(ly:make-pitch -1 0 SHARP))
    (two . ,(ly:make-pitch -1 1 NATURAL))
    (three . ,(ly:make-pitch -1 1 SHARP))
    (four . ,(ly:make-pitch -1 2 NATURAL))
    (five . ,(ly:make-pitch -1 3 NATURAL))
    ; ...
  ))

#(define-custom-note-names 'numeric-roman
  `((z . ,(ly:make-pitch -1 0 NATURAL))
    (i . ,(ly:make-pitch -1 0 SHARP))
    (ii . ,(ly:make-pitch -1 1 NATURAL))
    (iii . ,(ly:make-pitch -1 1 SHARP))
    (iv . ,(ly:make-pitch -1 2 NATURAL))
    (v . ,(ly:make-pitch -1 3 NATURAL))
    ; ...
  ))

\language "numeric-english"
{ zero'4 four'8 five' two'2 }

\language "numeric-roman"
{ z'4 iv'8 v' ii'2 }
%%%%

NOTE: I've abbreviated the definitions above, but you should be able to 
continue the patterns as needed.


-- Aaron Hill