Hi Daniel, The accidentals with arrows in both directions were added by Maximilian Albert and are marked with `for completeness'. They have no established musical meaning.
I'm forwarding your question to lilypond-devel as I'm not sure about the other two symbols you are asking about. The slashed mirrored flat is an optional glyph for the mirrored flat (-5/18 . ,(if eksikMirroredSlashedFlat "accidentals.mirroredflat.backslash" "accidentals.mirroredflat")) defined as Semi flat fet_beginchar ("Semi flat", "mirroredflat.backslash"); and the slashed double flat is defined as 3/4 Flat fet_beginchar ("3/4 Flat", "flatflat.slash"); but not referenced anywhere. Greetings, Jan
--- Begin Message ---Hi Jan, I'm trying to make a mapping between the repertoire of glyphs in Emmentaler and the glyphs in SMuFL (www.smufl.org) to check that there are no major omissions in SMuFL. There are a handful of mystery accidentals in Emmentaler that I have not seen in other sources, and wonder if you can shed any light on them? Unfortunately the LilyPond documentation doesn't seem to provide any hints about what these accidentals are supposed to mean. My impression is that the sharp, natural and flat with arrows both up and down must be provided for the sake of graphical completeness rather than for the sake of any specific musical meaning. The slashed double flat appears to be the graphical partner of the Turkish Bakiye flat (in SMuFL, accidentalBakiyeFlat), as does the reversed flat with a slash through its stem (a reversed version of the Turkish Bakiye flat). Do you know anything about these accidentals and what, from a musical perspective, they might mean? Thanks, Daniel - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Steinberg Media Technologies GmbH, Frankenstrasse 18b, D-20097 Hamburg, Germany Phone: +49 (40) 21035-0 | Fax: +49 (40) 21035-300 | www.steinberg.net President / Managing Director: Andreas Stelling Managing Director: Kazunori Kobayashi, Hiroshi Sasaki Registration Court: Hamburg HRB 86534 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -<<image/jpeg>>
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-- Jan Nieuwenhuizen <jann...@gnu.org> | GNU LilyPond http://lilypond.org Freelance IT http://JoyofSource.com | AvatarĀ® http://AvatarAcademy.nl
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