Thomas Morley <thomasmorle...@gmail.com> writes: > 2016-01-01 22:30 GMT+01:00 David Kastrup <d...@gnu.org>: >> Kieren MacMillan <kieren_macmil...@sympatico.ca> writes: >> >>> Hi David, >> >> It is trivial to let OttavaBracket contain line-spanner-interface which >> is just a label for a set of properties. What those properties do >> depends on actual code, however. It's common that different grobs react >> somewhat differently (or not at all) to particular properties. >> >> So it's quite trivial to complete the "well-defined" task without doing >> anything remotely useful. > > to illustrate: Even without having put line-spanner-interface into > OttavaBracket in any kind, you can set the relevant properties and you > can read out the values elsewhere. But nothing else happens, see:
Ok, I've not been entirely correct here: when an engraver has an acknowledger or end_acknowledger listening on line-spanner-interface, adding the interface to OttavaBracket will cause OttavaBracket to start triggering the respective acknowledgers. In this case, however, I don't see any engravers acknowledging line-spanner-interface. So indeed at the current point of time, adding line-spanner-interface to OttavaBracket should not make any difference. -- David Kastrup _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user