Letting the music move your hands was very interesting. I heard many sounds that created a tempo that went with my hand movement. The straight lines were songs with a straight tempo that stood consistent. A little change in the tempo can be identified by a line that is not perfectly straight. If it was I would have just used a ruler.
As I transitioned into other music the art started to get more interesting. As I heard many instruments I could not help but change back and forth with my drawing style. As each instrument played, even at the same time I drew two different patterns at the same time. Each identifying with its own characteristic. Point out any pattern you see and I will identify what happened at that exact moment in time.