What if you don’t have a keyboard controller handy when you're ready to record MIDI? No problem. You can use musical typing to play your computer keyboard like a musical keyboard. Simply do the following:
Choose Window→Show Musical Typing or press Command-K.
The Musical Typing keyboard appears.
Play the notes on the keyboard by pressing the corresponding keys.
You can do a lot with the musical typing keyboard. Here’s a description of the keys and what they do:
You have access to almost an octave and a half by using the middle and top rows of alphabet keys.
Sustain the notes you play by holding down the Tab key.
Pitch bend down and up by using the 1 and 2 keys.
Modulate the software instrument by pressing the 4 through 8 keys. Turn off modulation by pressing 3. The parameter that gets modulated will depend on the selected software instrument.
Shift the keyboard octave down or up by pressing Z or X, respectively. To change the octave, drag the blue area in the keyboard at the top of the window.
Adjust the velocity of the keyboard down or up by pressing C or V, respectively.
Switch between the musical typing keyboard and the onscreen keyboard by clicking the keyboard icon in the upper-left corner of the interface.