Good morning, Folks:
Warm greetings.
This is the issue I ran into yesterday. Could you please take a look a the attached image - measure 44. I was writing in Eb minor. Dorico added a flat sign to the note - D I was entering using the computer keyboard. The key signature already has a D flat. It sounded correctly as a natural D minus a half step. Why does it do this? I opened a new score. It doesn’t happen like this.
Thanks a lot.
Maybe there was a D-natural in the previous bar?
::: Bill
Yes – most likely it’s a cautionary, based on your settings in Notation Options.
if you don’t want change the Cautionary options, then you can always hide that particular accidental in the Properties panel.
Thank you very much. I will look into it.
Spot on. Why does it do that? My knowledge is that a note with an accidental only affects the same note afterwords in the same measure.
My “guess” is that if you’ve entered the key as eb (e flat minor), the leading note is d natural, so d flat, although being part of the key signature, could be seen as a special note (harmonic minor instead of melodic minor). In any case, I find it really easy to hide those unwanted accidentals (or add some), especially if you set a shortcut up to toggle between the properties 
Traditionally, yes: an accidental lasts for the remainder of the bar. Though it’s quite common to add “reminders” in the next bar (usually in brackets), that the key signature has been restored.
In some styles of music, accidentals only apply to the note they are on. (Usually in music with lots of accidentals…!)
Anyway: the settings are there for you to configure.
You can now visually identify explicit vs cautionary accidentals:
thanks
As a notation traditionalist, I shake my fist at some of these newfangled conventions.
In minor keys, there is more than one form of the minor scale. In the harmonic minor form the 6th and 7th degrees are raised a half when ascending and lowered back to the normal pitches in the key signature when going down. In your example, the note movement is upward, so some performers may question whether that was intended to be a natural because of the upward movement. The Db is added to indicate it is indeed intended to stay within the natural minor. It is cautionary.
