[JW Lua] Weird accidental behaviour

[Robert Patterson]

This is a perfect use case for the Enigma Text Dump plugin I sent out a
couple of days ago.

1. Dump your accidtest.musx file using the plugin.
2. Nudge an accidental right then left, so its position is unchanged.
3. Dump the file again using the plugin.
4. Compare.

I just did it, to make sure it works, but I already knew the answer. This
behavior of accidentals had a subtle change around 2000. I don't remember
the exact date. If the handle is on the left, it means there is no
FCAccidentalMod detail for that note. If it is on the right, it means there
is.

You can use the same process as above to determine what your offsets need
to be.

1. Dump your original accidtest.musx file using the plugin.
2. Place the accidental where you want it to be.
3. Dump the file again using the plugin.
4. Compare

I hope this helps.



On Wed, Jul 8, 2020 at 8:05 AM Jan Angermüller <jan at angermueller.com> wrote:

> Jari et al.,
>
> here is a weird accidental movement behaviour.
>
> When I use the Accidental Mover tool (or FCAccidentalMod -> HorizontalPos)
> and change the horizontal position to a new value, the accidental jumps
> onto the notehead (!) and takes the notehead as a new reference position.
> This Finale document was created with Fin2002a.
> The normal behaviour is that the change of the horizontal position keeps
> the reference position (i.e. far before the notehead) and moves only
> according to the new value.
>
> See this video:
> First the weird behaviour, then the normal behaviour (in the Fin2014
> default document):
> https://www.youtube.com/watch?v=wRLsU40Kog8
>
> While making this video I also noticed, that sometimes the anchor point
> changed (!).
> So maybe there used to be a flag in Finale (<=2002) which changed the
> alignment point of the accidental.
> Have a look at the 23. second in this video: I click on the anchor point
> and it suddenly jumps from the right of the accidental to the left of the
> accidental.
> https://www.youtube.com/watch?v=6EjOfAlhwMM#t=20s
> When the anchor point jumps (but this only happens very seldom, and I
> can't reproduce it) and I check the FCAccidentalMod it suddenly returns a
> -54 EVPU value for HorizontalPos. While by default (when the anchor point
> hasn't jump before) it returns no existing accidental mod and thus a 0 EVPU
> value.
>
> I haven't found a way to detect or to remove this behaviour yet. Probably
> it's not even possible.
> Attached is the document with the measure from the video where this weird
> thing happens.
>
> Any ideas?
> The only thing that came to mind: it was created with Fin2002a.
> Maybe this was a bug in Fin2002a which they fixed in 2002b?
> Or this was something available before 2002, but not supported anymore.
>
> Best,
> Jan
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