hi Valentin, >> the attached patch adds noteheads needed for black mensural notation (BMN) >> and coloratio in white mensural notation (WMN). >> >> note that it's just the noteheads: in both BMN and coloratio sections >> in WMN a fourth note looks like a flagged half note. > > Werner, do you want me to upload this patch on Rietveld (or possibly > to the bug tracker)? > >> I could reach this look by the following functions: >> >> #(define (nota-colorata music) >> (let ( >> (es (ly:music-property music 'elements)) >> (name (ly:music-property music 'name)) >> ) >> (if (equal? name 'EventChord) >> (let* ((note (first es)) >> (dur (ly:music-property note 'duration)) >> (dl (ly:duration-log dur)) >> ) >> (if (> dl 1) >> (set! music (shift-duration-log >> (ly:music-compress music (ly:make-moment 2 1)) >> 1 0))))) >> music)) >> >> notaColorata = >> #(define-music-function (parser location mus) (ly:music?) >> (music-map nota-colorata mus)) >> >> I hope there is a better solution. > > I'm not sure exactly what you're trying to achieve (I know nothing > about mensural notation), but is changing the rhythm a desired > side-effect? Whenever I want a black note head, I use something much > simpler (but arguably hackish): > > #(define (nota-colorata music) > (let ((es (ly:music-property music 'elements)) > (name (ly:music-property music 'name)) ) > (if (equal? name 'EventChord) > (let* ((note (first es))) > (set! (ly:music-property note 'tweaks) > (acons 'duration-log 4 > (ly:music-property note 'tweaks))))) > music))
as in CPP notes shorter than a quarter are created by attaching flags to a quarter note, in BMN notes shorter than a half are created by attaching flags to a half note; look at the table in http://en.wikipedia.org/wiki/Mensural_notation#Note_values so a fourth and a half note are not distinguished by note head look, but by flag count (and all flagged note values have one more flag than common, i.e. an eighth note has two). I looked for a method for tweaking - how many flags are on the stem - what is the note head (strictly speaking there's no need for a separate quarter note head in BMN), but I didn't found any. so the purpose of my function is to have a note that lasts as long as dictated by duration, but looks as if it were just the half, i.e. turns 4 into 8*2, 8 into 16*2, etc (but leaves 2, 1, \breve etc. intact); this way alignment of parts and midi output are correct. thanks, p _______________________________________________ lilypond-devel mailing list lilypond-devel@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-devel
