> For the opening height:
> >
> \override Hairpin.height = 2
>
> This is great...
>
> > For the length if it?s too short by default:
> > \override Hairpin.minimum-length = 10
>
> This not the answer I'm looking for. This also changes the length of the
> hairpin and spacing inside the measure. I want to manually adjust the
> hairpin without changing the note spacing. Do you know what I mean now?
>
Not really. If the hairpin is made longer while the note spacings
>
remain the same, then it will either start earlier in the music or
>
finish later. In which case, don't you just need to attach the \< or
>
\> to an earlier moment or the \! to a later moment. This may require
>
spacers if it's qualifying, say, a sustained note.
I would like to define the specific points where the hairpin ends and begins. "minimum-length" does not allow me to shorten it or lengthen it without changing the note spacing. Is there a way, kind of like with slurs and ties, to define the exact placement of the beginning and end of the hairpin?