On Fri, 15 Jun 2018 at 15:00, Aaron Hill <lilyp...@hillvisions.com> wrote:
> On 2018-06-15 05:27, Gianmaria Lari wrote: > > \version "2.19.81" > > #(define Ez_numbers_engraver > > (make-engraver > > (acknowledgers > > ((note-head-interface engraver grob source-engraver) > > (let* ((context (ly:translator-context engraver)) > > (tonic-pitch (ly:context-property context 'tonic)) > > (tonic-name (ly:pitch-notename tonic-pitch)) > > (grob-pitch > > (ly:event-property (event-cause grob) 'pitch)) > > (grob-name (ly:pitch-notename grob-pitch)) > > (delta (modulo (- grob-name tonic-name) 7)) > > (note-names > > (make-vector 7 (number->string (1+ delta))))) > > (ly:grob-set-property! grob 'note-names note-names)))))) > > > > \layout { > > ragged-right = ##t > > \context { > > \Voice > > \consists \Ez_numbers_engraver > > } > > } > > > > \new RhythmicStaff { a4 b8 a } > > > > and this is the error I get > > > > Interpreting music..document.ly:8:26 <0>: In procedure > > ly:pitch-notename in > > expression (ly:pitch-notename tonic-pitch): > > > > ..document.ly:8:26 <1>: Wrong type argument in position 1 (expecting > > Pitch): () > > > > > > Any suggestion to fix it? > > It appears that RhythmicStaves do not have a tonic property. So there > is no reference from which you can derive the numbering. You can > explicitly specify a tonic: > > %%%% > \new RhythmicStaff \with { tonic = #(ly:make-pitch 0 0 0) } > { \easyHeadsOn a4 b8 a } > %%%% Aaron, that's great! Thank you!! g.
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