Ok, let me show you one of my best classic hard rock riffs! I composed it about 3 years ago and now buying me a camera I've got the chance to make it viewable worldwide!
You can find the tabs and the video here:
http://www.profuzz.com/crazy-riff/classic-hard-rock-guitar-riff/
At the video you will see the fast and the slow tempo a) both hands b) left hand c) right hand.
Enjoy! I wish it will be useful for you.
