Hoo boy, the current drummer of Californian death metal band Decrepit Birth really knows how to shred!
According to the man himself in the YouTube video description, this wanking exercise was composed around a month ago. And yes, he played and recorded all the instruments himself. Check out the shred-tastic solo from 1:20 to 1:40 in particular, and if you find the black-and-white guitar he's playing on familiar, it's because you probably saw a photo or video of Avril Lavigne playing it (it's her signature telecaster) somewhere on the Internet. Hm, I wonder if the pop punk princess might be up for a collaboration with Decrepit Birth (if Feist and Brent Hinds of Mastodon can do it, why not!).