UPDATE: If you have updated to Finale 2014, take a look at the new Keyless Scores feature which is related to the issues covered in this post.
Q: I’m formatting a Timpani part with key signatures hidden. The score contains a number of keys changes / signatures. The timpani part itself is fine with all accidentals in place.
However, I need cued notes from other parts to appear in the Timpani part. The source parts all show key signatures. I used the TG Tools Add Cue Notes… plugin to make the cues, but none of those accidentals appear in the timpani part. For example, the flute is in the key of G major, and has a passage with F-sharp in it. If I cue that passage in the timpani part, Finale doesn’t show the sharp to indicate F#.
I can’t believe this is an uncommon problem. How can I globally make these diatonic accidentals appear in a part without Key Signatures?
A: As you are already aware, historically, Classical scores displayed some instruments without Key Signatures. Timpani and French Horn are probably the most common of these “keyless” instruments, although you will find examples in the repertoire for Trumpet and even Clarinet.
For Timpani, since it is not a transposing instrument, one would think that all you’d need to do to hide the key signature is to uncheck Key Signatures in Items to Display of the Staff Attributes, and any diatonic accidentals would then automatically appear in the staff:

However, to see how this really works (and how it doesn’t), let’s (1) define a Key Signature, then (2) set our Timpani not to display the Key Signature as above:

(3) Now, enter some notes using your MIDI keyboard. If you enter a sequence of non-diatonic naturals, you get (redundant) naturals displaying on every note; if you enter notes that are diatonic to the hidden Key Signature, the accidentals aren’t displayed at all, neither of which is very useful:

So, as you can see, simply hiding the Key Signature isn’t really an ideal solution at all. If you’ve already entered music in the staff with “Items to Display>Key Signatures” unchecked, there is a partial solution for showing accidentals more correctly after the fact, which I will cover at the end of the blog post. But first…
more >> “The Convolutions of Hidden & Independent Key Signatures in Finale”