Hello Richard, Thanks for your answer.
If I understand well, backup and forward MusicXML elements change the current 'position' in a voice along the way. Why is it difficult to handle that properly? JM > Le 14 mars 2016 à 11:28, Richard Shann <rich...@rshann.plus.com> a écrit : > > On Mon, 2016-03-14 at 11:08 +0100, Menu Jacques wrote: >> Hello, >> >>> Le 6 mars 2016 à 16:07, Richard Shann <rich...@rshann.plus.com> a écrit : >>> >>> It indeed should be able, but MusicXML isn't well adapted to the task: >>> note durations are indicated in multiple ways and there is a timer that >>> can move backwards to indicate notes that are to be sounded at the same >>> time as other notes and the resulting spaghetti can be very difficult to >>> interpret. The result can be nothing read at all, or (as in the case >>> with Denemo's import at least) empty staffs to be deleted, redundant >>> time signatures to be deleted, or worse, time signatures to be guessed >>> and inserted. >> >> I’ve tried to find information about the MusicXML timer mentioned by >> Richard, but no way. >> >> Can someone indicate where to find some? > > I think it's this > > http://www.musicxml.com/UserManuals/MusicXML/MusicXML.htm#CT-MusicXML-backup.htm > > Description > > The backup and forward elements are required to coordinate multiple > voices in one part, including music on multiple staves. The backup type > is generally used to move between voices and staves. Thus the backup > element does not include voice or staff elements. Duration values should > always be positive, and should not cross measure boundaries or > mid-measure changes in the divisions value. > > although the description is typically vague and I'm not sure it > corresponds much with what people do. The documentation seems to have > changed a lot since I last saw it, it appears to be machine generated > for the most part, making it look very comprehensive; unfortunately > machines don't care whether it means anything. > > Richard > > > > _______________________________________________ > lilypond-user mailing list > lilypond-user@gnu.org > https://lists.gnu.org/mailman/listinfo/lilypond-user _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user