For MuseScore 3 users, see Accidentals
Accidentals can be set or changed by dragging an accidental symbol from the accidental palette to a note in the score.
If you only want to change the pitch of a note you can also select the note and press:
- Up: Increase the pitch of a note by one semitone.
- Down: Decrease the pitch of a note by one semitone.
- Ctrl+Up: Increase the pitch of a note by one octave.
- Ctrl+Down: Decrease the pitch of a note by one octave.
MuseScore automatically tries to set an appropriate accidental for the changed pitch. If you need to manually correct an accidental or place an cautionary accidental (editorial accidental), then drag an accidental from the accidental palette to the note. If you later change the pitch with cursor keys, manual settings to the accidental are removed.
The menu function Notes → Pitch spell tries to guess the right accidentals for the whole score.