Okay, time to turn it up to 11! Metal was born from overly distorted rock music, and characterized by complicated riffs and guitar solos. Some say that The Beatles' "Helter Skelter" was the origin of metal, but the songs on this list are a far cry from anything the fab four recorded. Get familiar with sweeps, tapping, and every other little guitar trick you can think of because to play these tracks, require a bit of experience and a ton of discipline. Check them out below!