[midifirst]

Thanks for the previous replies.

Re my previous post;
I'm not sure if it was understood that I was hoping to change the pitch of a midi note with literally a "single Keyboard" command, .i.e. in a fraction of a second.
I didn't want to have to use the mouse at all. An example of how this might be implemented would be to have say, "OPTION COMMAND UP ARROW/DOWN ARROW" raise/lower a note one semitone.
(In Logic option UP/ DOWN Arrow raises/lowers the pitch of a midi note on semitone.)