Play a software instrument using musical typing
Choose Window > Show Musical Typing.
The Musical Typing window appears, showing the layout of keys used for playing notes and changing controller information.
Select the software instrument track you want to play.
Play the software instrument using the keys on your computer keyboard. Use the other keys shown in the window to perform the following actions:
Press Y or X to move down or up by octaves.
Press C or V to lower or raise the velocity.
Press 4 through 8 to change the modulation (mod wheel) value, or 3 to turn off modulation.
Press 1 or 2 to bend the pitch down or up. The pitch is bent for as long as you press the key.
Press Tab to turn sustain on or off (similar to using a sustain pedal).
As you play, the notes you play are highlighted in the Musical Typing window.