Visit the superrockguitar.com site for free Rock and Metal Guitar Lessons and lots of links to other free sites . Free lessons / tabs include G+R , Black Sabbath , Motley Crue . Led Zeppelin , AC / DC , Deep Purple , Poison and many many more , with free Rock and Metal scales and Rock lead lessons as well . Each video represents less than 10% of the original performance and is for free educational purposes only . All videos and tabs are only interpretations of the original pieces .