Auxiliary accidentals (quarter-tone up or down)


I would like to use custom accidentals:

They should be interpreted and played back as if the arrows weren’t there:

So the 1st one is natural, the 2nd is flat, and the 3rd is sharp.
I would like to use those IN ADDITION to also having the normal natural, flat, and sharp accidentals.

What’s the best way to do this?

Edit the Tonality System to add a new accidental. You can superimpose 2 glyphs to get both up and down arrows. You can also import an SVG if you have a custom graphic file.

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