Hearing MIDI Events When Editing
MIDI editing is made much easier if you can hear every event and edit you make, whether you are scrolling through the Event List (automatic selection) or transposing a note by dragging it.
To hear MIDI event edits in real time
Click the MIDI Out button at the top-left corner of each editor window.
This is an independent setting for each editor, which will transmit MIDI events whenever they are added, selected, or edited.