Justin's Completely Free Guitar Lessons, Riff Lesson #14 RF-014.
This guitar lesson will show you how to play the main riff and intro for the Black Sabbath classic Iron Man :)une!
Find the related course notes on the following link:
Taught by Justin Sandercoe.
Full support at the justinguitar web site where you will find hundreds of lessons on a wide range of subjects, and all the scales and chords that you will ever need! There is a great forum too to get help, no matter what the problem.
And it is all totally free, no bull. No sample lessons, no memberships, no free ebook. Just tons of great lessons :)
To get help with this lesson (and for further info and tabs), find the Lesson ID in the video title (like ST-667 or whatever) and then look it up on the Lesson Index page of justinguitar.com
Have fun :)