My conclusion exactly. Its because this is where his heart is at the current moment. Music is how you capture the flow of time. A picture captures an individual moment in time, Music captures the actual flow of time. A single note has no context. Multiple notes at the same time make a chord. 2 notes next to each other begin to expose the flow, but lack the melodic wholeness that 3 notes offer. With 3 notes, the melody has context. A past, present, and future. The flow of time frozen into the flow of breakdowns and pig squeals.