The tech-metal phenom has made tsunami-like waves on YouTube and continues to lay down mind-bending tracks for artists the world over. Now, with the extreme-metal goliath Darkest Hour's upcoming album, his artful drum science is about to blow away anyone and everyone within earshot.   Travis Orbin is a true standout among the growing ranks of talented players to emerge from the teeming depths of the Internet. The difference between Orbin and most others is that he attracts attention not just with speed but with ideas as well. Orbin plays with a level of musicality that is sometimes missing from extremely technical music, and his dedication to the craft is nothing short of epic. The DIY spirit is certainly strong in this new generation of tech-metal prodigies, as you can see and hear from the quality of work that Orbin an