shutterfreak wrote > On Sat, Nov 24, 2012 at 1:26 PM, Olivier Biot <
> olivier.biot@ > >wrote: > > Dear all, > > Following up on my own request, I stumbled upon an insightful article > featuring Bach's prelude for piano (BWV 846): > http://news.lilynet.net/?The-LilyPond-Report-23#feature_story_prelude_1_in_scheme > > Based on this example I managed to create a first version, which however > only works with *absolute* pitches (see measure 1). > > How can I make it work with *relative* pitches (see measure 2)? > > %%% BEGIN Snippet > \version "2.16.1" > > arpeggiate = #(define-music-function (parser location d p1 p2 p3 p4) > (ly:duration? ly:pitch? ly:pitch? ly:pitch? ly:pitch?) > "Arpeggiate each of the 4 notes note with a duration of > d." > #{ > $p1 $d ( $p2 $d $p3 $d $p4 $d ) > $p4 $d ( $p3 $d $p2 $d $p1 $d ) > #}) > > theMusic = { > \arpeggiate 8 g d' a' e'' > \relative g { > \arpeggiate 8 g d' a' e' > } > } > > \score { > \new StaffGroup << > \new Staff { > \relative g { > > <g d' a' e'> > 1 q > } > } > \new Staff { > \theMusic > } > >> > \layout { } > \midi { } > } > %%% END Snippet Dear all, So far I didn't find a way to make my arpeggio expansion work with notes in *relative pitch*. My bet is that I need to do some magic on "ly:pitch?" to get it to work, but I am clueless since I don't know what I should type as search keywords to get that information. Is there for example a relative-pitch-to-absolute-pitch checker routine that I could use? Could somebody with better knowledge of LilyPond / Guile help me in making it work or pointing me in the right direction? Any help is greatly appreciated! Olivier -- View this message in context: http://lilypond.1069038.n5.nabble.com/Expanding-bowed-arpeggios-tp136789p139404.html Sent from the User mailing list archive at Nabble.com. _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
