This Was the Most Radical Shift in U.S. Music of the Last 50 Years

By Carl Engelking | May 6, 2015 12:36 pm

record player

The Beatles are credited with igniting a rock ’n’ roll revolution when they toured the United States in 1964. I don’t want to spoil the party, but that revolution was well underway in the states long before the mop-top quartet arrived, and this is more than just a rumor. It’s science.

Researchers in the United Kingdom used big data analysis to build the first evolutionary history of popular music in the United States. They processed over 17,000 songs that appeared on the U.S. Billboard Hot 100 list from 1960 to 2010 to pinpoint style trends, musical diversity and the timing of revolutions.

According to their results, the single most radical change in American music had nothing to do with “the British Invasion.” Instead, it occurred much more recently, with the surge in popularity of hip-hop. 

Musical Theory

Researchers from Queen Mary University of London and Imperial College London used signal processing and text mining to analyze the musical properties of chart-toppers over five decades using music from Their system separated songs into groups based on properties, such as patterns of chord changes, tone color and lyrics.

For example, songs with minor-seventh chords — used for harmonic color in funk and soul — peaked in the mid 1970s. A surge in loud, energetic lead guitars and aggressive percussion, seen in the late 70s and early 80s, mirrored the rise and fall of arena rock.

Musical Revolutions

Music in the United States continuously changed over five decades, but researchers say that time period was interrupted with three abrupt revolutions. The first, in 1964, saw the expansion of several different styles of music as well as the arrival of The Beatles and The Rolling Stones. But the Beatles and Stones didn’t cause a revolution.

Instead, researchers say, the groups’ music reflected existing trends toward the use of major chords, increased guitar aggression, and decreased use of mellow vocals. The Beatles and Stones didn’t change the game, but they sure benefited from it.

Evolution of musical styles in the Billboard Hot 100. The width of each spindle is proportional to the frequency of that style, normalized to each year.

Evolution of musical styles in the Billboard Hot 100. The width of each spindle is proportional to the frequency of that style, normalized to each year. Credit: Mauch et al.

The second revolution occurred in 1983 as hair bands and arena rockers added a flood of songs with heavy percussion and vocals.

In 1991, however, the biggest revolution in American music occurred. Suddenly, more songs did away with musical chords, and songs with energetic speech skyrocketed.

Why? Hip-hop had officially arrived on the musical charts. In other words, John Lennon and Mick Jagger didn’t lead a musical revolution in the U.S., but Tupac, LL Cool J and other rappers did. Researchers published their analysis Tuesday in the journal Royal Society Open Science.

It’s Not as Bad as You Think

In terms of variety, 1984 was the blandest year between 1960 and 2010, and researchers attribute that to the dominance of genres such as new-wave, disco and hard rock. The emergence of hip-hop, and the decline of those genres, helped musical diversity bounce back.

However, despite what your hipster friends say, researchers found no evidence to back up the claim that a hegemonic recording industry oligopoly is today contributing to a decline in musical diversity. In fact, musical diversity has remained pretty consistent over the last five decades, they say.


Top image by Gabriele Maltinti/ Shutterstock

CATEGORIZED UNDER: Space & Physics, Technology, top posts
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  • Christopher Burd

    Rap and hip-hop represent a musical revolution, a radical break with the past. That much should be obvious to anyone.

    The British Invasion and, later, punk and new wave were more or less renewals of older forms that had lost their energy and freshness. The British Invasion was largely British youth’s take on American blues and rock & roll. Punk and new wave was largely an ironic, rebellious take on earlier rock and pop.

    What was original and interesting in these and other movements was (again, for the most part) not really something that will be picked up by a scientific analysis of the music’s acoustic properties. So, when the researchers claim that “musical diversity has remained pretty consistent over the last five decades”, what they really mean is diversity as they measure it, and that’s a pretty limited definition.

  • Giordano Klar

    Wait. Hip-hop is music? Gag me with a spoon. Hip-hop was shoved down our throats by MTV and warped the musical sensibilities of an entire generation.

    • TubularBellend

      Musical expression takes many forms. They’re not for everyone, sure, but that sure as hell doesn’t mean they’re not valid.

      If there’s no musical worth in the works of artists like J Dilla, A Tribe Called Quest, the Beastie Boys, De La Soul and Flying Lotus, then the entire notion of musical worth is utter bullshit.

    • Ivo Temelkov

      Coming from a person who doesn’t like hip hop, hip hop is music and you have to be either brain dead or musically and artistically ignorant to claim otherwise.

    • Dana

      Hip-hop predated MTV and you don’t actually get to hear most of it so basically, you have no idea what you’re talking about.

      It’d be like if all MTV and radio ever played of hair bands was Firehouse and Stryper and you hated both bands.

    • Tom Megginson

      This was decent “If there were internet comment sections in the early ’80s” satire.

  • John Werner

    If it ain’t Scottish…It’s Crap. Bagpipes rule.

  • Nayden Todorov

    I have problem to see hip hop and rap as music..

  • Martin Marty マ (m)

    Surely Tupac and LL Cool J were fairly late to the hop hop party having started in the mid to late 80s?


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