MuseScore allows, thanks to the ornaments palette, to make mordents.
In the example below ((screenshot 1 attached), it has been shown that the mordant is made with the upper second major
However, the use of the major second interval is not appropriate for all degrees of a scale.
In this example, the key is C major.
In the first bar the English horn plays a C, in real note. The mordent must be C-D-C, using the second major
In the second bar the English horn plays a B, in real note. The mordant should be B-C-B, using the minor second.
The use of the major second introduces a C#, a note that is not in harmony and creates a dissonance.
In traditional music notation, the mordent sign can be accompanied by an accidental ￼ to control the desired interval. (screenshot 2 attached)
This possibility of rating would be interesting.
agreed, a basic notation and playback feature expected by pianists on classical.
workaround How to create trills and ornaments with accidentals (and playback)
related to one of the oldest requests #14442: Trills and other ornaments with sharp or flat signs