Key & Metre This is the Key & Metre pane, used to set the initial key and metre for the piece. ( The two data fields which give detailed control of the spacing of complex metres demonstrate that it is possible to input measurements as ratios. There is a huge amount of settings to control every aspect of spacing, but we won't go into that in this Quick Tour.) For now, let's press the "Key" and "Metre" buttons...     fonts key & metre 2