Why Pop Music Sounds Darker and What That Says About Us

Hearing evolved not just to detect danger, but to regulate emotion and synchronize communities.

Over the past 50 years, American pop music has steadily shifted toward darker, slower, and more emotionally intense sounds. This isn’t just nostalgia talking. Large-scale analyses of Billboard charts show clear trends: fewer major keys, more minor keys, slower tempos, and lyrics increasingly centered on sadness, stress, and anger.

One new wrinkle comes from a 2025 Scientific Reports paper (Foramitti et al.) analyzing over 20,000 US Top 100 lyrics from 1973–2023: it found long-term rises in stress-related language alongside drops in positive sentiment and lyrical complexity, but major shocks like COVID-19 actually coincided with an attenuation of those trends, suggesting people may sometimes gravitate toward emotion-incongruent music as a form of mood regulation (i.e., escapism) rather than “more darkness” in the moment.

At its core, this shift reflects a broader cultural change. Where pop once served as glossy escapism, today it prioritizes authenticity. Artists are rewarded for vulnerability and emotional honesty, mirroring a society that is more open about mental health but also more weighed down by economic insecurity, political polarization, climate anxiety, and a nonstop news cycle.

Technology has amplified this mood. Streaming platforms optimize for “vibes” and emotional states, often reinforcing melancholy through mood-based playlists and algorithmic recommendations. Modern production tools (digital, isolated, and bass-heavy) also tend to create tenser soundscapes than the warmer, communal recordings of earlier eras.

Importantly, darker music isn’t inherently a problem. For many listeners, it offers catharsis and connection: the relief of hearing private anxieties reflected back. The real concern is imbalance. When stress-heavy music dominates, it can trap listeners in an emotional loop.

The path forward isn’t about forcing happiness into pop. Instead, it’s about widening the emotional palette: encouraging discovery over mood-matching, supporting communal music spaces like dance floors and live venues, reinvesting in music education, and, most critically, addressing the societal stressors that shape the art in the first place. A healthier culture naturally produces a fuller spectrum of sound.

REFERENCES

Foramitti, M., Nater, U.M., Lamm, C. et al. SSocietal crises disrupt long-term increases in stress, negativity, and simplicity in US Billboard song lyrics from 1973 to 2023. Sci Rep 15, 41733 (2025). https://doi.org/10.1038/s41598-025-28327-5  

Veblen KK, Waldron JL. Fast forward: Emerging trends in community music. The Oxford handbook of music education. 2012 Sep 6;2:203-19.

DATA

OSF | Diachronic Analysis of Stress, Sentiment and Complexity in Lyrics of Popular Music between 1973 and 2023

BLOGS

Hearing Research: Music in the Streaming Age

DISCUSSIONS

US pop music has grown darker and more stressed over 50 years: Words related to stress, anxiety and pressure increased 81% from 1973 to 2023, tracking rising depression and anxiety. Lyrics became more repetitive and less complex, tracking declines in education test scores and cognitive measures. : r/science

Happy Music Could Help You Recover From Motion Sickness

Motion sickness is a frustrating travel companion. Whether you’re reading in a car, riding a bus, or sitting in a self-driving vehicle, that familiar dizziness and nausea can quickly ruin your day. While medications and sensory tricks are common solutions, new research suggests that your playlist might also be a powerful tool.

A study published today, September 3, 2025, in Frontiers in Human Neuroscience explored how different genres of music affect motion sickness recovery. The findings? Joyful and soft music significantly helped participants feel better, while sad music actually made things worse—even compared to no music at all.

Researchers from a collaborative team in China recruited 30 participants and used a highly realistic driving simulator (complete with a steering wheel, pedals, and a surround-sound system) to induce motion sickness.

Once participants started to feel queasy, they were asked to recover while listening to one of four music types: 

• Joyful music

• Soft music

• Stirring (passionate) music

• Sad music
  

  A control group had no music at all.

While participants reported their feelings, researchers also measured their brain activity using EEG (electroencephalography). This allowed them to build a machine learning model to objectively track changes in motion sickness severity.

Joyful music reduced motion sickness severity by 57.3%, and soft music by 56.7%, making both highly effective in helping participants recover.

Surprisingly, sad music reduced discomfort by only 40%, which was less effective than sitting quietly without music (43.3%). The emotional weight of sad tunes likely deepened feelings of discomfort.

Stirring music helped somewhat (48.3% improvement), but wasn’t as consistently beneficial as joyful or soft music.

EEG Confirmed the Link

The researchers used a neural network model to analyze brainwave data, achieving 85.6% accuracy in detecting motion sickness states. They found that a brain activity measure called Kolmogorov–Chaitin (KC) complexity in the occipital lobe (the brain’s visual center) strongly correlated with sickness severity.

Music doesn’t just entertain—it can change your brain state.

Soft music may calm the nervous system, reducing dizziness by lowering stress and balancing sensory signals.

Joyful music might distract from discomfort by activating reward centers in the brain, lifting mood and reducing nausea.

Sad music, however, can intensify negative feelings, amplifying discomfort instead of soothing it.

With autonomous driving technology advancing rapidly, more passengers will spend travel time reading, working, or watching videos rather than focusing on the road. This shift could make motion sickness more common, making solutions like real-time, music-based interventions especially valuable.

The study even suggests future in-car systems could monitor brain activity or physiological signals to detect motion sickness early and automatically adjust music playback to help passengers recover faster. 

While this research offers exciting insight, it’s still early days. The study used a small group of participants and a driving simulator rather than real-world conditions, so more work is needed to confirm its findings on the road.

Still, there’s no harm in experimenting with your own motion sickness soundtrack. Next time your stomach churns on a winding road, slip on your headphones—skip the ginger candies for a moment—and try letting music work its magic.

Go for gentle, calming pieces like The Swan by Camille Saint-Saëns or Erik Satie’s Gymnopédie No. 1 to soothe your senses. Or, if you’d rather boost your mood and distract yourself from queasiness, opt for bright, cheerful classics like Benny Goodman’s Sing, Sing, Sing or Louis Armstrong’s On the Sunny Side of the Street.

Your perfect playlist might just become your best travel companion.

REFERENCE

Li Y, Li Y, Li Y, Luo B, Tang B and Yue Q (2025) A study on the mitigating effect of different music types on motion sickness based on EEG analysis. Front. Hum. Neurosci. 19:1636109. doi: 10.3389/fnhum.2025.1636109

Other musical suggestions

River Flow in You: orchestral version on youtube

Sheep may safely graze: on youtube

Clair de Lune, Claude Debussy

Weightless , Marconi Union

Spiegel im Spiegel, Arvo Pärt

Ambient 1: Music for Airports, Brian Eno

Elegia - New Order

Seasons of Sound: How Music and Nature Harmonize with Health

Music is not just an art form, but a tool for regulating emotions and activating the brain, which can benefit mental, cardiovascular and cerebrovascular health. 

Listening to seasonal music can evoke feelings tied to the changing environment—joy in spring, relaxation in summer, reflection in autumn, and introspection in winter. These responses help reduce stress, improve mood, and enhance overall well-being. Excerpts from Vivaldi’s “Four Seasons” was shown to have a positive effect on older adults’ cognitive performance.  Bach, Mozart, Handel, Haydn and others have been successively used in music therapy. Music was even shown to effectively improve the social skills and language communication ability of children with autism, and enhance their behavioral ability, sensory perception, and self-care skills.

Individuals with hearing loss or cochlear implants may experience music differently. The richness of music may be diminished due to difficulties hearing pitch and harmony. However, rhythm and tempo still provide valuable cues, allowing them to connect with the music, even if their experience is more limited.

Seasonal music, especially when tailored to individual needs, could be useful in hearing rehabilitation and mental health therapy. For instance, soothing winter compositions with slower tempos might promote relaxation and calmness, benefiting people with anxiety or stress, even those with hearing impairments.

Many composers have created music centered around the seasons, each interpreting these sensory experiences in unique ways. Vivaldi’s The Four Seasons is perhaps the most well-known, using lively, bright melodies to capture the essence of spring and intense, dramatic passages for winter. Similarly, Piazzolla’s The Four Seasons of Buenos Aires reflects the sultry and passionate atmosphere of Buenos Aires in summer through tango rhythms. Here's more: 

Jacques Loussier: He created a jazz interpretation of Vivaldi’s "The Four Seasons".

Pyotr Ilyich Tchaikovsky: Wrote “The Seasons”, Op. 37a, a set of twelve piano pieces each representing a different month of the year.

Alexander Glazunov: Composed the ballet “The Seasons”, Op. 67, which is divided into four scenes, each representing a different season.

John Cage: Composed “The Seasons”, a ballet score that represents the four seasons.

Leonid Desyatnikov: Arranged Piazzolla’s “Las Cuatro Estaciones Porteñas” for violin and string orchestra, blending elements of tango and classical music.

Franz Joseph Haydn composed “The Seasons” (Die Jahreszeiten), a large oratorio for soloists, chorus, and orchestra. It was completed in 1801 and is divided into four parts, each representing a different season of the year.

as we already mentioned:

Ástor Piazzolla: Composed “Las Cuatro Estaciones Porteñas” (The Four Seasons of Buenos Aires), which are tango compositions reflecting the seasons in Buenos Aires.

and, of course,

Antonio Vivaldi: Famous for his set of violin concertos known as “The Four Seasons”, Op. 8, Nos. 1-4.

Despite the different styles and periods of these composers, there are some common musical characteristics and emotional themes associated with each season in their works:

Spring

Tempo: Often lively and upbeat, reflecting the renewal and energy of spring.

Emotions: Joy, hope, and freshness.

Musical Characteristics: Light, bright melodies, often with a sense of awakening or blossoming. Vivaldi’s “Spring” from The Four Seasons is a prime example with its cheerful and vibrant violin passages.

Summer

Tempo: Can vary from slow and languid to fast and intense, reflecting both the heat and the storms of summer.

Emotions: Warmth, relaxation, but also intensity and sometimes agitation.

Musical Characteristics: Rich, full textures, sometimes with stormy or dramatic elements. Piazzolla’s “Verano Porteño” (Summer) captures the sultry heat of Buenos Aires with its passionate tango rhythms.

Autumn

Tempo: Often moderate, with a mix of lively harvest dances and more reflective, slower sections.

Emotions: Gratitude, nostalgia, and sometimes melancholy.

Musical Characteristics: Warm, earthy tones, often incorporating folk dance rhythms. Haydn’s “Autumn” in The Seasons includes lively harvest celebrations and reflective moments.

Winter

Tempo: Generally slower, though can include brisk, biting sections to reflect the cold.

Emotions: Stillness, introspection, and sometimes harshness.

Musical Characteristics: Sparse, crisp textures, often with a sense of chill or stark beauty. Tchaikovsky’s “January: By the Fireside” from The Seasons evokes the warmth and coziness of being indoors during winter.

Each composer brings their unique style to these themes, but the general emotional and musical characteristics of the seasons tend to be consistent. Using music from different seasons to reflect diverse emotional states can help in training users to identify shifts in mood and energy, enhancing their social and emotional perception.

REFERENCES

Pryer AJ. Vivaldi's Four Seasons and the Globalization of Musical Taste. https://research.gold.ac.uk/id/eprint/110/1/MUS-Pryer2002a_GRO.pdf

Mammarella N, Fairfield B, Cornoldi C. Does music enhance cognitive performance in healthy older adults? The Vivaldi effect. Aging clinical and experimental research. 2007 Oct;19:394-9.

Baltes FR, Miclea M, Miu AC. Does everybody like Vivaldi's Four Seasons? Affective space and a comparison of music-induced emotions between musicians and non-musicians. Cognition, Brain, Behavior. 2012 Mar 1;16(1):107.

Bavandi A, Ashrafi M, Mohammadzadeh A. A Descriptive Study on the Effect of Music on Speech-in-Noise Perception in Binaural and Monaural Hearing Aid Users. Indian Journal of Otolaryngology and Head & Neck Surgery. 2024 Aug 27:1-7.

Mei L. The role of teaching solfeggio considering memory mechanisms in developing musical memory and hearing of music school students. Current Psychology. 2024 Mar;43(11):10005-15.

Brian C. J. Moore The perception of emotion in music by people with hearing loss and people with cochlear implants 15 July 2024 https://doi.org/10.1098/rstb.2023.0258

Shi Z, Wang S, Chen M, Hu A, Long Q, Lee Y. The effect of music therapy on language communication and social skills in children with autism spectrum disorder: a systematic review and meta-analysis. Frontiers in Psychology. 2024 May 7;15:1336421.

Music in the Streaming Age

In the grand tapestry of human evolution, our sense of hearing has played a pivotal role in our survival and cultural development. Over time, our hearing has evolved in response to environmental cues and the intricate dance of language and communication. This journey has left its imprint on the very structure of our inner ears and the regions of our brains responsible for language processing. 

As our societies grew in complexity, so did our music. It was evolving from simple and rhythmic, to intricate compositions of classical music and avant-garde, experimental, serialist, highly spatialized music. It was changing from danceable to complex and dissonant rhythms. Some complex music was very popular - such as psychedelic rock band Pink Floyd; other not so much - such as Karlheinz Stockhausen's compositions. Modern music was incorporating elements of many other genres - eg alternative rock: punk rock, heavy metal, and experimental music and even simpler Hip Hop: jazz, funk, and soul. The most popular music was not always simplest but was more accessible.

In the 2020s, the world of music experienced a seismic shift with the rise of streaming platforms like Spotify, Tencent, and Apple Music. The impact was profound, not only revitalizing the music industry's revenue but also redefining the very essence of music itself.

Traditionally, music was a patient storyteller, often taking its time to build up to a climactic chorus or hook. Yet, the economics of streaming introduced a new imperative – capturing the listener's attention within the first 30 seconds. Enter the "Pop Overture," a clever technique where a song hints at its chorus within the initial moments, engaging the listener and encouraging them to stay for the full musical journey. 

To keep the dreaded "skip rate" at bay, artists began to craft shorter songs. Lengthy instrumental intros were swapped for immediate engagement, resulting in a significant reduction in the average duration of hit songs. In 2021, nearly two-thirds of chart-toppers clocked in at under three minutes, a departure from the days when a four-minute+ song was the norm.

As individual songs shrank, albums expanded. Streaming listeners, keen to maximize their musical experience, embraced longer albums. More songs equaled more income, with Taylor Swift's "Midnights" dominating the Hot 100 chart by offering an extensive musical journey. The average complexity of melodies had fallen over time, with two big drops in 1975 and 2000, as well as a smaller drop in 1996. The overriding pattern shows decreasing complexity and increasing note density in popular melodies over time, especially since 2000.

Streaming opened doors for genres that once struggled for visibility. Latin and K-Pop artists rose to prominence on Spotify's Global Top 100, fostering a rich tapestry of cross-genre collaborations. Remixes featuring artists from different backgrounds expanded a song's appeal and audience, exemplified by Justin Bieber's "Sorry (Latino Remix)" with J. Balvin.

While artistic creativity remains paramount, commercial considerations loom large. The streaming economy's dynamics, with its emphasis on plays, playlists, and recommendations, have compelled artists and labels to explore innovative strategies to maximize reach and revenue.

In this ever-evolving landscape of sound, music's essence has been reshaped by the streaming revolution. The emphasis on retaining listeners and optimizing plays has redefined how songs are crafted and albums are composed. With an emphasis on retaining listener engagement and maximizing plays, the industry has adapted to the evolving preferences and economics of the streaming era.

REFERENCES

Streaming is changing the sound of music(https://www.wsj.com/arts-culture/music/streaming-is-changing-the-sound-of-music-182dc907)

https://news.ycombinator.com/item?id=37531602

https://www.reddit.com/r/dataisbeautiful/comments/e5htxy/are_songs_getting_shorter_or_just_our_attention/

Hamilton, M., Pearce, M. Trajectories and revolutions in popular melody based on U.S. charts from 1950 to 2023. Sci Rep 14, 14749 (2024). https://doi.org/10.1038/s41598-024-64571-x

Acknowledgements: ChatGPT, Bard and Bing image creator