David Kastrup <[EMAIL PROTECTED]> writes: > CADB is sort of an international standard for transcribing diatonic > accordion music. It consists of regular notes on one system, with > basically numbers arranged according to what button to press or pull in > another system below, then chords under that. > > An explanation of the notation can be found at > <URL:http://www.diato.fr/exptab2.htm>. The same site has example > scores, like <URL:http://www.diato.fr/tablat/tab108.png>.
[...] > So the problems boil down to > > a) the graphical representation (which requires fixed vertical space and > not normally additional horizontal space) > > b) some sort of fingering engine which one can feed the necessary > information for choosing its priorities > > How would one go about implementing something like that in lilypond? > How would the work get structured? What would require working on the > kernel, what on subsystems? How well can the subsystems be separated? > > How much intelligence can one reasonably program into the fingering > engine without having it explode in complexity? It is thinkable to > tell it something like TeX's "badnesses" as overall penalties for > changing rows, changing bellows direction, and then let it minimize > over that? > > Or have a draft mode where, say, one has it pick one fingering > according to explicit priorities and indicate alternative fingerings > in different markup (small print, in parens or something), so that one > can incrementally override bad automatically chosen fingerings until > arriving at a good solution, in sort of a feedback loop? > > Ok, but that's basically icing. The main question is how hard it would > be to have it do the basic notation. Uh, this was not a feature request. It was a request to the people who have actually implemented stuff in Lilypond to give me a sketch of the necessary work to be done, and in what areas they would need to be done, and how well-prepared Lilypond is for doing such things. It was also a question about how well-prepared Lilypond is for embedding algorithms for what amounts to fingering instructions (converting to any kind of tablature has this problem: the more sparingly you can use hints for generating instrument-specific instructions, the better). So it's basically just a minute job on some questions. They are just questions. Just fire away, no preparation needed, no code. -- David Kastrup, Kriemhildstr. 15, 44793 Bochum _______________________________________________ lilypond-devel mailing list lilypond-devel@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-devel
