← Radiolab
Radiolab ·Oct 2, 2026 ·21 min

A 4-Track Mind

Evaluation and Summary

6.6/10

A 4-Track Mind explores the neuroscience of musical multitasking through the story of Bob Milne, one of the world's best ragtime piano players. Reporter Jessica Benko visits Michigan to investigate Bob's extraordinary ability: he can play technically demanding classical and ragtime pieces while simultaneously carrying on conversations and cracking jokes—a feat that neuroscientist Kerstin Betterman from Penn State says shouldn't be neurologically possible. Betterman devised a challenge to study this anomaly, placing Bob and a famous conductor in an fMRI machine to observe their brains under musical stress. The episode builds toward a reveal of an even more remarkable ability that Bob possesses, one that science struggles to explain. The narrative structure follows Radiolab's signature style: starting with an intriguing premise, introducing compelling characters, and building toward a surprising discovery about how the brain works. The episode is relatively short at 21 minutes, suggesting a tightly focused story rather than a deep dive. The show notes emphasize the mystery and wonder of Bob's talents, framing the episode as an investigation into the limits of neuroscience's current understanding.

Verdict: A well-crafted, engaging short episode that delivers an intriguing neuroscience mystery through compelling storytelling, though its brevity limits the depth of scientific exploration.

Science rubric

  • Scientific accuracy 3/5 20%

    Describes genuine neuroscience research (fMRI studies of musical cognition) but the show notes acknowledge science 'can't explain' Bob's ability, suggesting appropriate humility about limitations rather than overconfident claims.

  • Clarity for non-experts 4/5 20%

    The narrative framing (a dare, a challenge, a mystery) makes neuroscience accessible through storytelling; the premise is immediately graspable even for non-scientists.

  • Sense of discovery 4/5 15%

    Centers on an unusual human ability and a scientific puzzle; the show notes hint at a revelation that science cannot yet explain, suggesting genuinely surprising material.

  • Substance 3/5 15%

    At 21 minutes with a focused narrative, likely contains solid content, but the brevity and show-notes-only format make it hard to assess whether there's padding or if the story is densely packed.

  • Delivers on its title 4/5 15%

    Title 'A 4-Track Mind' directly addresses the multitasking ability (playing music while talking and joking); the episode appears to deliver on this premise through Bob's story and the fMRI investigation.

  • Value for time 4/5 15%

    At 21 minutes, the episode is concise; the narrative arc (setup, investigation, revelation) suggests efficient pacing without obvious filler, though brevity limits depth.

How we score Science

Worth it if you enjoy Radiolab's narrative-driven science storytelling and are curious about the neuroscience of musical talent and cognitive multitasking.

Based on the episode description. AI-generated; it can be wrong.

Show notes

In this short episode, first aired in 2011, a neurologist issues a dare to a ragtime piano player and a famous conductor. When the two men face off in an fMRI machine, the challenge is so unimaginably difficult that one man instantly gives up. But the other achieves a musical feat that ought to be impossible. Reporter Jessica Benko went to Michigan to visit Bob Milne, one of the best ragtime piano players in the world, and a preternaturally talented musician. Usually, Bob sticks to playing piano for small groups of ragtime enthusiasts, but he recently caught the attention of Penn State neuroscientist Kerstin Betterman, who had heard that Bob had a rare talent: He can play technically challenging pieces of music on demand while carrying on a conversation and cracking jokes. According to Kerstin, our brains just aren't wired for that. So she decided to investigate Bob's brain, and along the way she discovered that Bob has an even more amazing ability ... one that we could hardly believe and science can't explain. Our newsletter comes out every Wednesday. It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Gordon and Betty Moore Foundation, Science Sandbox, a Simons Foundation Initiative, and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Episode page

More from Radiolab

Radiolab ·3w ago ·22 min

Grass Apes

In this 22-minute episode, Radiolab explores the overlooked but transformative role of grass in human history and biology. Hosted by Molly Webster and featuring biologist and writer David George Haskell, the episode frames grass as far more than a mundane lawn or allergen—it's a planetary force that has shaped human…

Worth it if you enjoy Radiolab's narrative-driven approach to science and want a quick, engaging introduction to grass's role in human history rather than a rigorous deep dive.

Radiolab ·4w ago ·31 min

The Sweetest Thing

Radiolab's 'The Sweetest Thing' follows co-host Latif Nasser on a quest sparked by his sons' simple question: what is the sweetest thing in the world? The episode explores multiple candidates for ultimate sweetness, including the West African Katemfe berry, industrial sugar substitutes developed in laboratories, and…

Worth it if you enjoy Radiolab's signature blend of personal narrative and scientific curiosity, or have genuine interest in food science, sensory perception, and the chemistry of taste.

Radiolab ·1mo ago ·1h 3m

23 Weeks 6 Days

This Radiolab episode, originally released in 2013 and rebroadcast in 2026, tells the deeply personal story of Kelley Benham and Tom French, journalists who faced an extraordinary medical and moral crisis when their daughter Juniper was born at 23 weeks and 6 days gestation—roughly halfway through a normal pregnancy.…

Worth it if you're interested in medical ethics, parenting dilemmas, the limits of modern medicine, or deeply human narratives that resist easy answers.

Radiolab ·1mo ago ·58 min

60 Words

This Radiolab episode examines the Authorization for Use of Military Force (AUMF), a law signed by President George W. Bush in the immediate aftermath of 9/11. At the heart of this legislation lies a single 60-word sentence that has become the legal foundation for the entire "war on terror" and the longest war in U.S.…

Worth it if you're interested in post-9/11 policy, constitutional law, the war on terror, or how legal language shapes military and foreign policy for decades.

/10