Of all the early breakthrough rock & roll artists, none is more important to the development of the music than Chuck Berry. He is its greatest songwriter, the main shaper of its instrumental voice, one of its greatest guitarists, and one of its greatest performers. Quite simply, without him there would be no Beatles, Rolling Stones, Beach Boys, Bob Dylan, nor a myriad others. There would be no standard "Chuck Berry guitar intro," the instrument's clarion call to get the joint rockin' in any setting. The clippety-clop rhythms of rockabilly would not have been mainstreamed into the now standard 4/4 rock & roll beat. There would be no obsessive wordplay by modern-day tunesmiths; in fact, the whole history (and artistic level) of rock & roll songwriting would have been much poorer without him. Like Brian Wilson said, he wrote "all of the great songs and came up with all the rock & roll beats." Those who do not claim him as a seminal influence or profess a liking for his music and showmanship show their ignorance of rock's development as well as his place as the music's first great creator. Elvis may have fueled rock & roll's imagery, but Chuck Berry was its heartbeat and original mindset.