Wrong accidental shown for implicit accidental

As per a previous ticket, the renderer may infer the wrong accidental when none is explicitly defined in the MusicXML file. This typically happens in situations where the same accidented note appears multiple times in a single measure: subsequent notes will NOT have the accidental explicitly added to the file.

In this example, the “A slash-flat” note appears twice in measure 1, but the second one is wrongly rendered as “A quarter-flat” because those 2 accidentals share the same alter value, thereby confusing the renderer.

[sschmidTU]

We’d also have to check which accidentals Vexflow supports, e.g. here: https://www.vexflow.com/tests/ It could be that not all supported accidentals are in these tests though.

[infojunkie]

That can’t be, because it doesn’t have slash-flats.

Haha you’re right - I was confused about what I was checking 😅 I ran the latest develop locally and saw all slash-flats.

I will produce a list based on MusicXML accidentals and think about the transposition issue.