From the lesson:
We're going to be focusing on just 4 notes. Everything we create has to come from those 4 notes, so it really forces you to be creative. Think about phrasing - you're not running up and down the scales, you're thinking about "what can I say with those 4 notes?", and what gives you your sound is what YOU do with those 4 notes.
For part 2 and more lessons by Brian visit ActiveMelody.com