Re: Coloring adjacent notes by interval

[Michael Käppler]

Am 29.11.2019 um 23:27 schrieb David Kastrup:
> Michael Käppler <address@hidden> writes:
>
> > Hi all,
> > I would like to color all successive notes in a voice that span a
> > certain interval, like e.g. a perfect fifth upwards.
> > Seems to me the most straightforward and extensible way would be to
> > write a scheme engraver for this, right?
> No, just a callback function for a NoteHead's color property should be
> fine.
That means it is possible to access properties of a preceding or
subsequent event from within a callback?
Because I would have to know the pitch of the note causing the grob for
which the callback is called and the pitch
of the preceding note. Maybe I did not express clearly enough what I'm
trying to achieve.

Michael