Way too short.
You had a nice little riff going there but it was just way too short. Not a lot of effort could have been put into this if it only lasted thirty seconds. I liekd your choice of song though. My favorite band Metallica and you probably chose their best song! Overall you did a nice job on this but you didn't make it very long. Try harder next time and make your next Audio Track a lot longer! 2/5.
~Hemlok~