Change the pitch of a tone
In MuseScore one can change the pitch of a tone with flats and sharps changing it a halfnote pitch.
Is it possible to change the pitch by a quarter or something in between?
I'm asking because I want to make som scores for Byzantine Chant and in the "scales" the pitch is often not changed by a whole or a halfnote. ....
If not possible in MuseScore it might be possible in a payware program (Sibelius etc).??