Retrograde plugin should handle chord symbols

[MarcSabatella]

Your idea

If you run the "New retrograde" plugin on a passage that includes chord symbols, the notes and rests get reversed but not the chord symbols. This feels wrong. Sure, you might want to exclude chord symbols sometimes, but the plugin should ideally honor the selection filter for that (e.g., by checking to see if a chord symbol is selected) so you are in control of that.

There are any number of other markings that we could potentially think about including - dynamics, etc - but it gets more subjective as to whether it makes sense. Chord symbols are the main thing that are not handled but I think should be (again, unless you exclude them via the filter).

Problem to be solved

Running the retrograde plugin on a melody with chord symbols leaves the melody out of the sync with the chords.

Prior art

No response

Additional context

No response

Checklist

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