@Override
    public void reactPressed(MouseEvent event) {
        ProgramState curr = StateMachine.getState();
        if (curr != ProgramState.ARR_PLAYING && curr != ProgramState.SONG_PLAYING) {
            if (curr == ProgramState.EDITING) {
                modeDisp.setText("Arranger");
                theStaff.setArrangerMode(true);
            } else if (curr == ProgramState.ARR_EDITING) {
                modeDisp.setText("Song");
                theStaff.setArrangerMode(false);
            }
        }
    }