And this is with considerable ‘hacking’ already: 2 voices with changes to the voice column index, dragging stems, creating 2 custom notehead sets… (far harder than it is to hack the same result in Sib, with which the first example is created).
I know it probably sounds a bit mental, but this is a game-changer for me; I use this technique all the time in my music; it’s commonly used by Saariaho and some others.
That’s really helpful - definitely works in this case. Have to say though it doesn’t in a case where there’s no note being tied to (e.g. second example below): however, it got me thinking enough to come up with the solution of writing the auxiliary trill notes as normal notes in a second voice, changing the notehead size and type to suit (actually this is basically the same workaround I use in Sib in the end…).
It’s a double harmonic trill on violin, so alternating between harmonics and open strings whilst playing 2 strings at the same time. You can hear it in real life at the start of this piece here: