Apple Logic Pro 9 - Manual (Page 476)

Using the Caps Lock Keyboard for MIDI Step Input
The Caps Lock Keyboard enables you to use the computer keyboard as a real-time virtual
MIDI keyboard. You can also use it for MIDI Step Input. This makes it ideal for situations
where no external MIDI or USB keyboard is available, such as when you’re traveling with
your portable Mac computer.
The Caps Lock Keyboard spans more than ten octaves and even includes support for
sustain and velocity information.
To enable the Caps Lock Keyboard
µ
Press the Caps Lock key on your computer keyboard.
A green dot on the key indicates that it is active.
Note that many keys have different functions that override their usual key command
assignments, while in this mode.
This is the English version of the Caps Lock Keyboard—another language version may
appear, depending on your Input Menu settings in International preferences.
The Escape key sends an All Notes Off command, should you encounter hanging notes.
The numeric keys (above the QWERTY keyboard) are used to define the octave for the
MIDI keyboard.
The two rows below the numeric keys function as counterparts for MIDI keyboard keys,
starting with the note C, assigned to the alphabetical A key (or Q, as would be the case
with a French keyboard, for example).
See the black and white keys in the figure above for details.
The lowest row of letter keys sets the velocity for MIDI notes. There are preset
values—ranging from pianissimo to forte fortissimo. Each value can be finely adjusted
with the two keys to the right of this row (these are assigned to the comma and period
keys on an English QWERTY keyboard). This keyboard configuration allows you to send
any MIDI velocity value from 1 to 127.
476 Chapter 14 Recording in Logic Pro