Radiolab Radiolab

A 4-Track Mind

Oct 2, 2026 · 21m

Summary

This Radiolab episode features a promotional segment for a new fanny pack designed by assistant producer Anissa Vitsa, followed by a classic archive story about Bob Milne, a ragtime pianist with a "four-track mind." Neurologist Kirsten Bertram tests Bob's ability to mentally play four symphonies simultaneously, revealing he visualizes distinct orchestras in 3D space. The story explores how his unique emotional and spatial relationship with music allows him to process complex auditory information without interference, stretching our conception of human cognitive capabilities.

Topics discussed

Sponsorships: AT&T and WISE Promoting the Radiolab Fanny Pack and The Lab Membership Introduction to the archive episode 'A Four-Track Mind' Meeting Bob Milne: A piano player and national treasure Bob's background and his ability to play multiple rhythms The claim: Hearing four symphonies simultaneously Designing the experiment to test Bob's musical memory Test results: The conductor fails the multi-song task Bob successfully tracks four symphonies in the MRI Explaining the ability: Emotional connection to music keys Sponsorships: Capital One, WISE, and Smalls Ira Glass promotes This American Life Bob's 3D visualization of orchestras in his mind Bob's life: Traveling, writing an opera, and performing Outro credits and acknowledgments
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