Hello Ken, As far as I know Lilypond's behaviour here is pretty much the standard behaviour, as done by most Software, Editions and recommended by Gould. Thus doing ottava markings like this should be considered uncommon notation. Considering Tchaikovsky is not exactly modern music I think it is viable to say that in this case it is your original source that deviates from common and expected practise.
It is a known problem that while the ottava bracket looks like a line spanner it is not a line spanner and does not follow the same interface. This means that for properly implementing this you'd need to rewrite the ottava bracket engraver. But the question is whether you really want to copy your source exactly, even replicating such cases of uncommon engraving style that might just have been the result of someone who is not versed in engraving using some software that does not handle such things correctly by default. Cheers, Valentin 14.05.2022 05:29:21 Kenneth Wolcott <kennethwolc...@gmail.com>: > Hi; > > The ottava spanner terminates at the end of the note, not at the end > of the bar. > > How to change this? > > Screenshots attached. > > Thanks, > Ken Wolcott
