Some of rock music's most iconic compositions are instantly recognized for their opening riff, a guitar lick that effectively introduces the rest of the track. The best riffs are those that have helped shape the genre and, by doing so, prompted others to pick up a guitar and make music. And since the 1950s, countless six-string virtuosos have been influencing generations with their unique and innovative fretwork. So, who can we thank for helping to define rock music's identity?
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