If this footage makes Dyad seem indecipherable, I can sympathize. Even having played the PlayStation Network title myself, I can barely keep up with it.
One of the coolest aspects of Dyad is its music. On the PlayStation Blog, creator Shawn McGrath offers a description and three free songs. "An individual level consists of up to 300 different loops and scale notes. Dozens of loops play simultaneously and are mixed dynamically based on your interactions; loops are also swapped in and out constantly to match the continually changing game state."
That make sense? The end result is a rather zen-like experience that many games of this nature go for but aren't always able to capture.