Status: Accepted Owner: ---- Labels: Priority-Low Type-Enhancement
New issue 1278 by v.villenave: Enhancement: arrow notation for quarter-tones http://code.google.com/p/lilypond/issues/detail?id=1278 % Feature request by Joseph: % http://lists.gnu.org/archive/html/bug-lilypond/2010-09/msg00348.html %% In arrow quarter-tone notation, up- and down-arrows are %% added to regular accidentals to indicate raising or lowering %% by a quarter-tone. This allows for two different accidentals %% to indicate raising the pitch by a quarter-tone (natural-with- %% up-arrow and sharp-with-down-arrow) and similarly for lowering %% the pitch by a quarter-tone (natural-with-down-arrow and flat- %% with-up-arrow. %% %% For a description of the notation, see K. Stone, "Music Notation %% in the Twentieth Century", pp. 67-68 (scans not attached since %% file-size is too big, but can be provided on request). %% %% Following the standard Dutch -is/-es sharp/flat notation, and %% -ih/-eh for raising/lowering by 1/4-tone, as described in NR: %% http://lilypond.org/doc/v2.12/Documentation/user/lilypond/Writing-pitches#Note-names-in-other-languages %% %% Define: %% cih = c-natural-with-up-arrow = c + 1/4 %% ciseh = c-sharp-with-down-arrow = c + 1/2 - 1/4 %% ceh = c-natural-with-down-arrow = c - 1/4 %% cesih = c-flat-with-up-arrow = c - 1/2 + 1/4 { cih2 ciseh2 %% these are the same pitches, but with different %% accidentals, both equal to c + 1/4-tone ceh2 cesih2 %% similarly, these are two different ways of writing %% the same pitch c - 1/4-tone } %% Lilypond's current method of internal pitch representation does not %% permit two different accidentals for the same pitch in this way. %% This is a general issue that affects implementation of many other %% microtonal notations beyond arrow notation for quarter-tones. %% %% For background and further details see discussion on lilypond-devel: %% http://www.mail-archive.com/[email protected]/msg30934.html Attachments: StoneArrowed.png 171 KB StoneArrows2.png 137 KB _______________________________________________ bug-lilypond mailing list [email protected] http://lists.gnu.org/mailman/listinfo/bug-lilypond
