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Earworms: Why Some Songs Get Stuck In Our Heads More Than Others

Kelly Jakubowski, Durham University


Having a song stuck in one’s head, known as an earworm, is an experience that over 90% of us have on a regular basis. In the last 10 years or so, researchers have begun to investigate this phenomenon, exploring such topics as how the earworm experience varies depending on one’s personality traits and how to get rid of an unwanted earworm. This research has revealed a variety of important results, but one question remains that has still not been entirely answered: how do songs get into our heads in the first place?

There are a variety of reasons why a song might appear as an earworm that have little to do with the music itself. For instance, survey research has indicated that earworms are commonly attributed to the recent or repeated hearing of a song. Some participants in this study also reported earworms triggered by memory associations, such as a word or image that reminded them of the lyrics to a song – I’ve had this experience several times on hearing the word “umbrella”.

Additionally, we know that mood can have an impact, with some people reporting that they always get the same earworm when they are stressed, or people experiencing a fast-tempo earworm when they are in a very alert mood. And of course familiarity with a song is a key contributor. Songs that you don’t know very well are less likely to pop up as earworms, possibly because earworm tunes need to be learnt to a high level in order for the brain to be able to replay them spontaneously without deliberate effort.

What about the music?

Despite this variety of extra-musical factors, the common anecdotal belief that certain features of the music itself could make a song more “catchy” or prone to getting stuck in one’s head had not yet been addressed in detail by researchers. But research that I have recently published with my colleagues Daniel Müllensiefen, Sebastian Funnel, and Lauren Stewart represents the first large-scale study to specifically investigate the musical features that might increase the “earworminess” of a piece of music.

In this study, we surveyed 3,000 people and asked them what songs they most frequently experienced as earworms. From this, we were able to develop a list of the “top-named earworm” tunes from the years 2010-2013 (when the survey was conducted). This particular study focused exclusively on pop music, although we hope in future to extend this work to include other genres. The list is as follows:

  1. Bad Romance by Lady Gaga

  2. Can’t Get You Out Of My Head by Kylie Minogue

  3. Don’t Stop Believing by Journey

  4. Somebody That I Used To Know by Gotye

  5. Moves Like Jagger by Maroon 5

  6. California Gurls by Katy Perry

  7. Bohemian Rhapsody by Queen

  8. Alejandro by Lady Gaga

  9. Poker Face by Lady Gaga

  10. Single Ladies by Beyoncé / Rolling in the Deep by Adele (tied for 10th place)

Most offending earworm.

Once we had this list of top earworms, we took the top 100 earworm tunes and created a comparable set of 100 tunes that had never been named as earworms by our survey participants. We made sure our non-earworm tunes were by similar artists and had achieved similar popularity, as measured by the UK music charts, since we know that recent hearing and familiarity with a song can have an influence on whether it becomes an earworm. So, for instance, Bad Romance by Lady Gaga was matched to Just Dance – another popular Lady Gaga song that was not named as an earworm in the survey by anyone.

We then compared the earworm versus non-earworm songs in terms of over 80 features, including things like their pitch range, interval content, and rhythmic variability.

Earworm qualities

We found three melodic features to be key in predicting whether a song had been named as an earworm:

  1. Tempo: Earworm tunes tended to be faster in tempo (speed) than non-earworms. The idea that our brain likes to throw upbeat tunes at us more often than slow tunes could be due to the relationship between movement and earworms – many people get earworms when engaging in periodic movement like walking, running, or brushing their teeth.

  2. Generic melodic shapes: Earworm tunes tended to have more generic overall melodic contours (shapes) than non-earworm songs. One example of a very common melodic contour is a rising pattern followed by a falling one, as seen in the first section of Twinkle, Twinkle Little Star and many other nursery rhymes, as well as the chorus to Bad Romance. Having a generic melodic shape might help our brain to be able to recall a song more easily and rehearse it in the mind.

  3. Unusual interval patterns: Earworm tunes also tended to have some unique intervals, such as a larger number of leaps or an occasional bigger leap than is expected in “the average pop song”. The idea that earworm tunes need to be generally easy to remember in terms of melodic shape but also contain some unique patterns of intervals could be due to the brain searching for a sort of “Goldilocks” level of complexity in a melody – a melody that is not too simple but not too complex to remember either.

So why should we care about what makes some songs stick in our heads more than others?

Research on earworms can help to inform us about how and why our brains spend up to 40% of our days thinking thoughts that are unrelated to our present task at hand. Ongoing research is investigating whether earworms might serve any functional purpose in our lives, such as helping us to memorise newly learnt music or regulating our moods throughout the day.

Research into the causes and “cures” for earworms may also have clinical applications in helping people experiencing conditions known as “musical obsessions” or “musical hallucinations” to prevent or alleviate particularly problematic instances of imagined tunes.

The ConversationAnd perhaps in the future, these factors could be of use to aspiring songwriters looking to create the perfect earworm song.

Kelly Jakubowski, Music Psychologist, Durham University

This article was originally published on The Conversation. Read the original article.

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