You can add notes to a score by typing them on the computer keyboard. First pressing on the key adds note to the selected musical event, second one removes it. Musical typing works with most input types except Lyrics.
The buttons corresponding to notes were chosen to imitate the arrangement of the keys on the piano keyboard.
Pressing the key removes all notes from current musical event and sets rest into it. Click it again to delete rest sign.
The octave number which is used when adding new notes can be decreased by and increased by the .
The full list of keys used for Musical typing is available here.