Playlist Psychology: Do Your Favorite Beats Betray Your Brainpower? Unpacking the Science of Music Taste and Intelligence

For decades, the stereotype has lingered: classical music lovers are intellectuals, while rap fans are somehow “less sharp.” Social media amplifies these claims with viral graphics declaring “rap fans have the lowest IQ scores” or “complex lyrics = high intelligence.” But what does actual peer-reviewed research say? A deep dive into the most recent studies—including a groundbreaking 2026 analysis of real-world listening data—reveals weak, nuanced correlations at best. Music preferences are far more tied to personality, culture, and life experience than raw cognitive ability. No evidence supports the idea that listening to rap (or any genre) makes someone “dumber,” and the latest data shows lyrical themes matter more than beats or genre labels.

The 2026 Landmark Study: Lyrics Over Genres

The most recent and methodologically sophisticated research comes from a February 2026 paper in the Journal of Intelligence titled “Deep Beats, Deep Thoughts? Predicting General Cognitive Ability from Natural Music-Listening Behavior.” Led by Larissa Sust and colleagues at Ludwig-Maximilians-Universität München, the study tracked smartphone music listening for 185 German adults over five months, analyzing 58,247 songs. Participants completed validated cognitive tests measuring general cognitive ability (GCA)—a broad indicator of fluid reasoning, vocabulary, and knowledge.Researchers extracted three categories of features:

• Listening habits (e.g., total duration, percentage of non-native language songs)
• Audio characteristics (tempo, mode, liveness from Spotify)
• Lyrical characteristics (using LIWC text analysis for emotional tone, social words, present-focus, authenticity, home-related themes, etc.)

Machine-learning models (LASSO regression and random forests) were trained to predict GCA scores. Results showed only modest predictive power overall, but lyrics-based preferences were by far the strongest signal, followed by listening habits. Audio features (the “beats”) contributed almost nothing. Specific lyrical patterns linked to higher GCA included:

• More present-focused language (words like “are,” “can,” “now”)
• Greater perceived authenticity/honesty
• More home-related themes (e.g., “house,” “bed”)
• Fewer songs in the participants’ native language (German)

Patterns linked to lower GCA included:

• More social/affiliative words (e.g., “friend,” “help”)
• Greater tentative language (e.g., “if,” “maybe”)
• More positive emotional tone overall

Crucially, the study never analyzed or mentioned specific genres like rap, hip-hop, classical, or pop. It made no claims about “rap fans” scoring lower. The authors emphasized that cognitive ability shows up in subtle, everyday behavioral micro-patterns—not broad genre stereotypes. Popular science outlets like PsyPost covered the findings accurately, noting that lyrics reveal more than rhythm or melody. Yet social media quickly distorted the message, with Instagram and TikTok posts falsely attaching genre labels (“rap = simple beats = low IQ”) that the researchers never used.

Earlier Research: Weak Genre Links and the Kanazawa Hypothesis

Prior studies have occasionally reported small genre-based correlations, but these are older, smaller, and heavily confounded.In a widely cited 2012 paper, Satoshi Kanazawa and Kaja Perina tested the “Savanna-IQ Interaction Hypothesis”—the idea that higher intelligence makes people more open to evolutionarily novel stimuli. They found a positive correlation between intelligence and preference for purely instrumental music (classical, jazz, ambient), but no link (or a negative one) for vocal-instrumental music. Rap showed a significant negative correlation with intelligence scores; gospel showed an even stronger negative link. The authors noted it would be hard to argue gospel is “less complex” than rap, underscoring that complexity alone doesn’t explain the pattern. A 2019 Croatian replication by Račevska and Tadinac largely supported the instrumental preference finding but found weaker overall effects once personality and socioeconomic factors were considered. Other smaller or older studies (e.g., a 2016 Romanian analysis of crystallized intelligence) reported that participants scoring above average preferred classical and rock, while lower scorers leaned toward commercial pop, Latin, or hip-hop/rap. These relied on self-reported preferences rather than objective listening data and did not control well for education or cultural background. A 2025 cross-cultural study noted weak associations between certain music dimensions and verbal IQ, but again stressed personality traits (especially openness to experience) as the dominant factor. Across the board, effect sizes are small. Music taste explains only a tiny fraction of variance in intelligence scores—nowhere near enough to label entire fanbases.

Personality, Culture, and Why the Stereotype Persists

Decades of research (including large-scale international studies) show music preferences align far more strongly with the Big Five personality traits than with IQ:

• Openness to experience → reflective/complex genres (classical, jazz, indie)
• Extraversion → upbeat/energetic genres (pop, dance, hip-hop)
• Conscientiousness → unpretentious/conventional music

Rap and hip-hop fans often score higher on extraversion and self-esteem, not lower on intelligence. Socioeconomic status, education level, urban vs. rural living, and cultural identity exert far stronger influences on both music taste and test scores than any direct “music → smarts” link.

Key Limitations Across All Studies

• Correlation, not causation: Listening to rap does not lower intelligence, nor does classical music raise it.
• Small effects: Even the best models predict only modestly; real-world application is negligible.
• Measurement issues: Most early work used self-reported genre preferences, not actual listening logs. Intelligence tests vary widely.
• Confounders: Age, gender, ethnicity, income, and education explain most overlaps.
• Generalizability: The 2026 study was limited to German Android users; older work often used WEIRD (Western, Educated, Industrialized, Rich, Democratic) samples.
• No causal mechanism: No study has shown music changes cognitive ability in a meaningful way.

Bottom Line

The science is clear: your playlist offers faint, indirect clues about cognitive style—primarily through the language and themes in the lyrics you choose—but these signals are subtle, non-deterministic, and swamped by personality and environment. There is no robust evidence that rap fans are less intelligent than fans of other genres. Viral claims twisting the 2026 study or older Kanazawa findings are sensationalized at best and misleading at worst.Music is far more than a proxy for IQ. It’s a mirror of identity, emotion, and culture. So blast whatever moves you—your intelligence is safe either way.

References

1. Sust, L., Bergmann, M., Bühner, M., & Schoedel, R. (2026). Deep Beats, Deep Thoughts? Predicting General Cognitive Ability from Natural Music-Listening Behavior. Journal of Intelligence, 14(2), 29. https://doi.org/10.3390/jintelligence14020029
2. “Your music playlist might reveal subtle clues about your intelligence.” PsyPost, March 19, 2026. https://www.psypost.org/your-music-playlist-might-reveal-subtle-clues-about-your-intelligence/
3. Kanazawa, S., & Perina, K. (2012). Why more intelligent individuals like classical music. Journal of Behavioral Decision Making. https://doi.org/10.1002/bdm.730
4. Račevska, E., & Tadinac, M. (2019). Intelligence, Music Preferences, and Uses of Music From the Perspective of Evolutionary Psychology. Evolutionary Behavioral Sciences, 13(2), 101–110. https://doi.org/10.1037/ebs0000124
5. Bardakçı, M.R. (2025). Examining the relationship between preferred music types and psychological factors. BMC Psychology. https://doi.org/10.1186/s40359-025-03648-2
6. Panait, D. (2016). The Sound of Intelligence. Journal of Experiential Psychotherapy.