Thank you for your valuable suggestions! I took the music function by Pierre-Luc and modified as follows:
artificialHarmonicMod = #(define-music-function (stopped touched result duration) (ly:music? ly:music? ly:pitch? ly:duration?) #{ << { \voiceOne \stemDown <$stopped $touched \harmonic>$duration } \new Voice { \voiceTwo \once \omit Stem \once \omit Flag \parenthesize $result 32 ^\flageolet } >> \oneVoice \stemNeutral #}) \new Staff { \relative c' { \artificialHarmonicMod cis_~ fis cis'' 4 \artificialHarmonicMod cis,, gis' gis'' 4 } } In this way it is possible to put ties between common notes, for example. Is there a way to insert an optional argument in the music function? I would have the possibility to express a post-event, like tremolo or glissando. Thank you Rip_Mus Il giorno lun 2 mag 2022 alle ore 18:33 Pierre-Luc Gauthier < p.luc.gauth...@gmail.com> ha scritto: > I used this extensively (in Stravinsky and whatnot). > > artificialHarmonic = #(define-music-function > (stopped touched result duration) > (ly:pitch? ly:pitch? ly:pitch? ly:duration?) > #{ > \afterGrace > <$stopped > $touched \harmonic>$duration > \tweak NoteHead.font-size -6 > \tweak Stem.stencil f > \tweak Beam.stencil f > \tweak Flag.stencil f > \parenthesize > $result \harmonic > #}) > > used as : > \artificialHarmonic ds,, fs as''1. > > It works for me but is not quite perfect. For one, I would love for it > to generate only the midi for the $resulting note and not the whole > chord (which is musically totally irrelevant). > > Hope it helps > -- > Pierre-Luc Gauthier >