Unify plus and minus signs in MuseJazz Text font.

The MuseJazz Text font looks great and I'd like to use it to set some harmonica music using standard notation with the addition of textual indications: "+1" (blow 1), "−2" (draw 2), etc.

The problem is that the plus and minus signs of the font are fairly dissimilar from one another unlike most fonts. They are at different heights and have different widths. This is a pretty niche request, I know, but if MuseJazz Text is under continuing development, perhaps it could be considered.