[superb]

For me, it depends on what I want the song to focus on. There are times when it is best to lay down the drums as they are the foundation of the rythmn section. This is the way it is done in a studio for most forms of popular music such as rock and rap. Of course, with MIDI there's a wide range of sounds and styles use can produce despite its limitations. I will say that most of the time I do not write the drums first. The exception is when I want to base the melody off of the drum beat. Here's an example of writing the drums first.

By the way, that's a pretty piss poor tutorial sorry to say. Music tutorials are by no means easy to write, but you'll never be able to create a good one without touching on basic music theory.