Well... Here, let me write it down for you first, and then we can go through the sounds. Might be easier to have the visual.

[ he'll just keep talking as he pulls out a pen and notebook and starts writing the alphabet. besidw each letter is a series of dots or dashes. you know how morse works I don't need to explain it ]

Morse code is all long or short sounds, and each letter has a set that belongs to it. See?