Accidentals with trills

Sometimes, depending on context, I notice that Dorico adds an accidental to a trill. I think this is a less smart feature than most other smart features of Dorico, see this example:
Obviously this is wrong, and there are more places where it is not the right choice. I can change that to a minor second if I want, but that is a local change!
In fact I do not want Dorico to add those accidental at all, but as far as I can see it is not possible to hide the accidentals that Dorico seems to find appropriate as a GLOBAL setting.
Besides the properties as above I checked the Engraving options and Notation options…
Now I have to manually remove them all, which is a lot of extra work.
So in short is there a way to tell Dorico to never show the accidentals in ornaments?

Assuming default Engraving Options/Notation Options, the only way I can persuade Dorico to produce your result is by not having a key signature.
As soon as I have a key signature of A minor or C major, Dorico assumes that the G# trill goes to an A.

If you’re writing in a key, tell Dorico what key you’re writing in. If you don’t, Dorico assumes that every trill is a tone and adds accidentals where necessary.

I am sorry but I do not quite understand what you are saying!
The key of this particular piece (part of a sonata by Unico Wilhelm van Wassenaer) is a-minor, so no key signature, which means, in my eyes, C-major or a-minor.
Is the key signature not enough to tell Dorico in which key we are? If so how do I tell Dorico in which key we are, and I also wonder why this is the case? What is the benefit of twice telling the key?

If you start with no key, Dorico assumes you’re writing atonal music. I believe this is equivalent to adding an open/atonal key signature, and the typical implication would be in scores that have some transposing instruments, where, for instance, a Bb Clarinet but should always appear with no key signature in a piece whose concert pitch key signature is open/atonal, but ought to display in D major in a piece whose concert pitch key is C major.

Do you have a key signature at the start of your piece? If signposts are turned on A minor or C major should show as a red signpost.
If not, try selecting something at the start of the piece and typing Shift-K a Enter. Does that fix your trill accidentals?


There was (and is) no key-signature at the start, because the piece is in a-minor key, there was also no signpost.
Now I added the a-minor tonality, and still no key-signature (which is of course ok), but there is the signpost a-minor, and the accidentals are gone.
So that is good, thanks for that!

But still I do not completely grasp the concept: the start of the next sonata looks like this:
d-minor key-signature, but no signpost.

While writing this I suddenly think I understand: by adding the key-signature (which I did I think in this sonta) you only imply which notes will be altered by accidentals so nothing more than a sign, by adding tonality Dorico adds automatically the key-signature and all other things like these accidentals neccesary for that tonality.
Is that right? Coming from Musescore this is new for me!

Key signatures that don’t display any accidentals display a red signpost. Aside from custom tonality systems, that typically means just A minor or C major. Your D minor key signature doesn’t need to display a signpost because it contains accidentals so we can all see it exists.

Even if you’re writing in A minor, you need to tell Dorico you’re writing in A minor, or else it assumes you’re writing atonally. The trill accidental logic (along with accidental spelling when playing notes in on a MIDI keyboard) is governed by the key signature.

If you have a key signature, Dorico assumes that trills are diatonic - they trill to the next note in the scale. If you don’t have a key signature, there is no scale, so Dorico assumes that each trill is a major second, and displays accidentals as necessary.


Just found that out! Tried to get the signpost for the d-minor and did not succeed, so wondered why, and came to the same solution. The only key-signposts you will see will be the C-major or a-minor ones.
Many thanks for the clarification!!

Of course I checked now all trills, and found out that Dorico is not entirely fool-proof in this respect:

Key is C-major (with signpost!), for the second trill Dorico assumes this must be an Eb-D, I think because of he earlier Eb in the same voice, but because of the E-natural in the other voices an E-natural would be more appropriate. The E-natural in the third trill is strictly not neccesary, but added as a reminder perhaps?

If you want to leave it up to the player, select a trill, use Select More a few times to select all of the trills on that staff/system/flow, then toggle on the Accidental property and set to Hide (it’ll probably be set to Hide automatically).

Thank you very much for your help!