The brain is an intrinsically rhythmic organ. Across many frequency bands, its electrical activity oscillates continuously, and these rhythms shape perception, attention, and the sense of time passing. Heartbeat and breath are rhythmic too; the brain tracks them, and from that tracking comes the ongoing sense of being a body in the world.
When sound carries a strong temporal structure, these rhythms begin to synchronize with it — a phenomenon called neural entrainment. It is measurable, documented across decades of research, and familiar: it is what makes a foot tap to a beat. Entrain compositions are built to engage it well beyond the motor system — across the interlocking rhythms that govern perception, attention, and autonomic state.
I compose from neural resonance theory: the account of how neural oscillations lock to external rhythm through nonlinear resonance, forming the stable patterns the brain experiences as musical structure, anticipation, and shifts in awareness.
Composers have used recordings of brain activity as a musical instrument since Alvin Lucier’s Music for Solo Performer in 1965. For Entrain, listeners may wear an EEG headband to record brainwave activity. The measurements are part of my compositional research: they show how closely the brain’s rhythms track the musical structures. The EEG is not required and nothing about a sitting depends on it.
The foundational science is well established. What remains an active area of research is how these mechanisms interact with consciousness, emotion, and individual difference. People report a range of experiences, depending on how their own perceptual dynamics meet the sound.