Because there is so much stuff going on in FL, let's just ignore most of it for now. Except for the Play and Stop buttons. Those are pretty important.

See the big window open in the middle part of the screen? That's the Playlist. This is where our song will be put together on FL. The playlist works by playing different permutations of Patterns, the building blocks of FL. Each pattern represents a measure of music, notes, or some sort of FX.