One of the most influential bands of all time - Black Sabbath created and popularised the dark side of metal, launching a distinctive and terrifying sound through their anthemic songs and devastating riffs.

The guitar playing of Tony Iommi has inspired virtually every rock and metal guitarist since with his slow, grinding rhythms, clashing chords and twisted solos.

In this special DVD tutorial Danny Gill provides a note-by-note, riff-by-riff analysis of eight Sabbath classics, including Fairies Wear Boots, Showblind and Into The Void.